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1061745668620 = 22571319414091831
BaseRepresentation
bin11110111001101001111…
…10010011001000001100
310202111112212210101101121
433130310332103020030
5114343423342343440
62131431554250324
7136465022163430
oct17346476231014
93674485711347
101061745668620
1137a31382869a
121519345869a4
13791785a2030
1439562aac9c0
151c94238e34a
hexf734f9320c

1061745668620 has 384 divisors, whose sum is σ = 2967945523200. Its totient is φ = 309646540800.

The previous prime is 1061745668573. The next prime is 1061745668651. The reversal of 1061745668620 is 268665471601.

It is a super-2 number, since 2×10617456686202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 579871105 + ... + 579872935.

It is an arithmetic number, because the mean of its divisors is an integer number (7729024800).

Almost surely, 21061745668620 is an apocalyptic number.

1061745668620 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 1061745668620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483972761600).

1061745668620 is an abundant number, since it is smaller than the sum of its proper divisors (1906199854580).

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

1061745668620 is a wasteful number, since it uses less digits than its factorization.

1061745668620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 1061745668620 in words is "one trillion, sixty-one billion, seven hundred forty-five million, six hundred sixty-eight thousand, six hundred twenty".