128156797022 has 16 divisors (see below), whose sum is σ = 196675020432. Its totient is φ = 62608490880.

The previous prime is 128156797007. The next prime is 128156797031. The reversal of 128156797022 is 220797651821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2482808 + ... + 2533899.

It is an arithmetic number, because the mean of its divisors is an integer number (12292188777).

Almost surely, 2^128156797022 is an apocalyptic number.

128156797022 is a deficient number, since it is larger than the sum of its proper divisors (68518223410).

128156797022 is a wasteful number, since it uses less digits than its factorization.

128156797022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017003.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 128156797022 in words is "one hundred twenty-eight billion, one hundred fifty-six million, seven hundred ninety-seven thousand, twenty-two".