97975165693572 has 72 divisors (see below), whose sum is σ = 260286437785920. Its totient is φ = 31013721478080.

The previous prime is 97975165693529. The next prime is 97975165693621. The reversal of 97975165693572 is 27539656157979.

97975165693572 is a `hidden beast` number, since 9 + 7 + 9 + 7 + 5 + 16 + 569 + 35 + 7 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 97975165693491 and 97975165693500.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425523379 + ... + 425753562.

Almost surely, 2^{97975165693572} is an apocalyptic number.

97975165693572 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

97975165693572 is an abundant number, since it is smaller than the sum of its proper divisors (162311272092348).

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

97975165693572 is a wasteful number, since it uses less digits than its factorization.

97975165693572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851277113 (or 851277108 counting only the distinct ones).

The product of its digits is 6751269000, while the sum is 81.

The spelling of 97975165693572 in words is "ninety-seven trillion, nine hundred seventy-five billion, one hundred sixty-five million, six hundred ninety-three thousand, five hundred seventy-two".