97964199522 has 126 divisors (see below), whose sum is σ = 256508106939. Its totient is φ = 27965868840.

The previous prime is 97964199521. The next prime is 97964199533. The reversal of 97964199522 is 22599146979.

97964199522 is a `hidden beast` number, since 9 + 7 + 96 + 4 + 19 + 9 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48982099761 + 48982099761 = 221319^2 + 221319^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=221319.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 97964199522.

It is not an unprimeable number, because it can be changed into a prime (97964199521) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 83657997 + ... + 83659167.

Almost surely, 2^97964199522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97964199522

97964199522 is an abundant number, since it is smaller than the sum of its proper divisors (158543907417).

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

97964199522 is an frugal number, since it uses more digits than its factorization.

97964199522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 1183 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The spelling of 97964199522 in words is "ninety-seven billion, nine hundred sixty-four million, one hundred ninety-nine thousand, five hundred twenty-two".