97155522966538 has 8 divisors (see below), whose sum is σ = 150758570120580. Its totient is φ = 46902666259680.

The previous prime is 97155522966533. The next prime is 97155522966577. The reversal of 97155522966538 is 83566922555179.

It can be written as a sum of positive squares in 2 ways, for example, as 84002229164529 + 13153293802009 = 9165273^2 + 3626747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97155522966533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837547611723 + ... + 837547611838.

Almost surely, 2^{97155522966538} is an apocalyptic number.

97155522966538 is a deficient number, since it is larger than the sum of its proper divisors (53603047154042).

97155522966538 is a wasteful number, since it uses less digits than its factorization.

97155522966538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675095223592.

The product of its digits is 1224720000, while the sum is 73.

The spelling of 97155522966538 in words is "ninety-seven trillion, one hundred fifty-five billion, five hundred twenty-two million, nine hundred sixty-six thousand, five hundred thirty-eight".