133399373040 has 400 divisors, whose sum is σ = 470654474400. Its totient is φ = 35013648384.

The previous prime is 133399373017. The next prime is 133399373053. The reversal of 133399373040 is 40373993331.

133399373040 is a `hidden beast` number, since 1 + 3 + 339 + 9 + 3 + 7 + 304 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 180512991 + ... + 180513729.

It is an arithmetic number, because the mean of its divisors is an integer number (1176636186).

Almost surely, 2^133399373040 is an apocalyptic number.

133399373040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133399373040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235327237200).

133399373040 is an abundant number, since it is smaller than the sum of its proper divisors (337255101360).

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

133399373040 is a wasteful number, since it uses less digits than its factorization.

133399373040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 45.

The spelling of 133399373040 in words is "one hundred thirty-three billion, three hundred ninety-nine million, three hundred seventy-three thousand, forty".