97900565616 has 60 divisors (see below), whose sum is σ = 313126415472. Its totient is φ = 27971589888.

The previous prime is 97900565569. The next prime is 97900565627. The reversal of 97900565616 is 61656500979.

97900565616 is a `hidden beast` number, since 9 + 79 + 0 + 0 + 5 + 6 + 561 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48560781 + ... + 48562796.

Almost surely, 2^97900565616 is an apocalyptic number.

It is an amenable number.

97900565616 is an abundant number, since it is smaller than the sum of its proper divisors (215225849856).

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

97900565616 is a wasteful number, since it uses less digits than its factorization.

97900565616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97123598 (or 97123589 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 97900565616 in words is "ninety-seven billion, nine hundred million, five hundred sixty-five thousand, six hundred sixteen".