97616866861679 has 12 divisors (see below), whose sum is σ = 107299442020680. Its totient is φ = 88741313060400.

The previous prime is 97616866861643. The next prime is 97616866861699.

97616866861679 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 97616866861679 - 2⁴⁰ = 96517355233903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97616866861679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97616866861609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2508944 + ... + 14196074.

It is an arithmetic number, because the mean of its divisors is an integer number (8941620168390).

Almost surely, 2^{97616866861679} is an apocalyptic number.

97616866861679 is a deficient number, since it is larger than the sum of its proper divisors (9682575159001).

97616866861679 is a wasteful number, since it uses less digits than its factorization.

97616866861679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756182 (or 11756171 counting only the distinct ones).

The product of its digits is 11851370496, while the sum is 86.

The spelling of 97616866861679 in words is "ninety-seven trillion, six hundred sixteen billion, eight hundred sixty-six million, eight hundred sixty-one thousand, six hundred seventy-nine".