15797165522 has 8 divisors (see below), whose sum is σ = 23696536716. Its totient is φ = 7898319952.

The previous prime is 15797165521. The next prime is 15797165567. The reversal of 15797165522 is 22556179751.

It can be written as a sum of positive squares in 2 ways, for example, as 15582279241 + 214886281 = 124829^2 + 14659^2 .

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 (15797165521) 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, 44873 + ... + 183324.

Almost surely, 2^15797165522 is an apocalyptic number.

15797165522 is a deficient number, since it is larger than the sum of its proper divisors (7899371194).

15797165522 is a wasteful number, since it uses less digits than its factorization.

15797165522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262812.

The product of its digits is 1323000, while the sum is 50.

The spelling of 15797165522 in words is "fifteen billion, seven hundred ninety-seven million, one hundred sixty-five thousand, five hundred twenty-two".