64455107402656 has 48 divisors (see below), whose sum is σ = 133578898588800. Its totient is φ = 30530413651968.

The previous prime is 64455107402633. The next prime is 64455107402681. The reversal of 64455107402656 is 65620470155446.

It is a junction number, because it is equal to n+sod(n) for n = 64455107402597 and 64455107402606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18032265 + ... + 21308983.

It is an arithmetic number, because the mean of its divisors is an integer number (2782893720600).

Almost surely, 2^{64455107402656} is an apocalyptic number.

It is an amenable number.

64455107402656 is an abundant number, since it is smaller than the sum of its proper divisors (69123791186144).

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

64455107402656 is a wasteful number, since it uses less digits than its factorization.

64455107402656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309101 (or 3309093 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 55.

The spelling of 64455107402656 in words is "sixty-four trillion, four hundred fifty-five billion, one hundred seven million, four hundred two thousand, six hundred fifty-six".