97816562916 has 12 divisors (see below), whose sum is σ = 228238646832. Its totient is φ = 32605520968.

The previous prime is 97816562881. The next prime is 97816562917. The reversal of 97816562916 is 61926561879.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 97816562916.

It is not an unprimeable number, because it can be changed into a prime (97816562917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075690110 + ... + 4075690133.

It is an arithmetic number, because the mean of its divisors is an integer number (19019887236).

Almost surely, 2^97816562916 is an apocalyptic number.

It is an amenable number.

97816562916 is an abundant number, since it is smaller than the sum of its proper divisors (130422083916).

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

97816562916 is a wasteful number, since it uses less digits than its factorization.

97816562916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151380250 (or 8151380248 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The spelling of 97816562916 in words is "ninety-seven billion, eight hundred sixteen million, five hundred sixty-two thousand, nine hundred sixteen".