97776081616 has 40 divisors (see below), whose sum is σ = 192118060800. Its totient is φ = 48201283200.

The previous prime is 97776081589. The next prime is 97776081617. The reversal of 97776081616 is 61618067779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97776081617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259645 + ... + 512803.

It is an arithmetic number, because the mean of its divisors is an integer number (4802951520).

Almost surely, 2^97776081616 is an apocalyptic number.

It is an amenable number.

97776081616 is a deficient number, since it is larger than the sum of its proper divisors (94341979184).

97776081616 is a wasteful number, since it uses less digits than its factorization.

97776081616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253507 (or 253501 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 97776081616 in words is "ninety-seven billion, seven hundred seventy-six million, eighty-one thousand, six hundred sixteen".