102561055664 has 40 divisors (see below), whose sum is σ = 201499839792. Its totient is φ = 50561556480.

The previous prime is 102561055637. The next prime is 102561055691. The reversal of 102561055664 is 466550165201.

It is an interprime number because it is at equal distance from previous prime (102561055637) and next prime (102561055691).

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, 4064912 + ... + 4090064.

Almost surely, 2^102561055664 is an apocalyptic number.

It is an amenable number.

102561055664 is a deficient number, since it is larger than the sum of its proper divisors (98938784128).

102561055664 is a wasteful number, since it uses less digits than its factorization.

102561055664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28725 (or 28719 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 102561055664 in words is "one hundred two billion, five hundred sixty-one million, fifty-five thousand, six hundred sixty-four".