97189555221572 has 12 divisors (see below), whose sum is σ = 185543696332176. Its totient is φ = 44177070555240.

The previous prime is 97189555221509. The next prime is 97189555221589. The reversal of 97189555221572 is 27512255598179.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104426763838 + ... + 1104426763925.

It is an arithmetic number, because the mean of its divisors is an integer number (15461974694348).

Almost surely, 2^{97189555221572} is an apocalyptic number.

It is an amenable number.

97189555221572 is a deficient number, since it is larger than the sum of its proper divisors (88354141110604).

97189555221572 is a wasteful number, since it uses less digits than its factorization.

97189555221572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208853527778 (or 2208853527776 counting only the distinct ones).

The product of its digits is 158760000, while the sum is 68.

The spelling of 97189555221572 in words is "ninety-seven trillion, one hundred eighty-nine billion, five hundred fifty-five million, two hundred twenty-one thousand, five hundred seventy-two".