10645256665056 has 96 divisors (see below), whose sum is σ = 30369407634720. Its totient is φ = 3245413423104.

The previous prime is 10645256665051. The next prime is 10645256665063. The reversal of 10645256665056 is 65056665254601.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×10645256665056² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 10645256664987 and 10645256665005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645256665051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38991735 + ... + 39263798.

It is an arithmetic number, because the mean of its divisors is an integer number (316347996195).

Almost surely, 2^{10645256665056} is an apocalyptic number.

10645256665056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10645256665056 is an abundant number, since it is smaller than the sum of its proper divisors (19724150969664).

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

10645256665056 is a wasteful number, since it uses less digits than its factorization.

10645256665056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78255668 (or 78255660 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 57.

The spelling of 10645256665056 in words is "ten trillion, six hundred forty-five billion, two hundred fifty-six million, six hundred sixty-five thousand, fifty-six".