97572064158 has 32 divisors (see below), whose sum is σ = 216837073920. Its totient is φ = 32522481720.

The previous prime is 97572064123. The next prime is 97572064159. The reversal of 97572064158 is 85146027579.

97572064158 is a `hidden beast` number, since 9 + 7 + 572 + 0 + 64 + 1 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97572064159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2030793 + ... + 2078283.

It is an arithmetic number, because the mean of its divisors is an integer number (6776158560).

Almost surely, 2^97572064158 is an apocalyptic number.

97572064158 is an abundant number, since it is smaller than the sum of its proper divisors (119265009762).

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

97572064158 is a wasteful number, since it uses less digits than its factorization.

97572064158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85549 (or 85543 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 97572064158 in words is "ninety-seven billion, five hundred seventy-two million, sixty-four thousand, one hundred fifty-eight".