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133427990609550 = 2325271379167491503
BaseRepresentation
bin11110010101101000011111…
…111110111011111010001110
3122111102120222002010020002100
4132111220133332323322032
5114442041011044001200
61151435550033335530
740050565664133330
oct3625503776737216
9574376862106070
10133427990609550
113957254726956a
1212b6b2a41075a6
13595b289703b80
1424d3d40881450
151065b7cbe4d00
hex795a1ffbbe8e

133427990609550 has 1152 divisors, whose sum is σ = 451272876687360. Its totient is φ = 27517959705600.

The previous prime is 133427990609519. The next prime is 133427990609561. The reversal of 133427990609550 is 55906099724331.

133427990609550 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 2 + 79 + 9 + 0 + 6 + 0 + 9 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 265264394599 + ... + 265264395101.

It is an arithmetic number, because the mean of its divisors is an integer number (391729927680).

Almost surely, 2133427990609550 is an apocalyptic number.

133427990609550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133427990609550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225636438343680).

133427990609550 is an abundant number, since it is smaller than the sum of its proper divisors (317844886077810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133427990609550 is a wasteful number, since it uses less digits than its factorization.

133427990609550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 55112400, while the sum is 63.

The spelling of 133427990609550 in words is "one hundred thirty-three trillion, four hundred twenty-seven billion, nine hundred ninety million, six hundred nine thousand, five hundred fifty".