23155695290 has 96 divisors (see below), whose sum is σ = 52291797264. Its totient is φ = 7317596160.

The previous prime is 23155695289. The next prime is 23155695317. The reversal of 23155695290 is 9259655132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3978707929 + 19176987361 = 63077^2 + 138481^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5074610 + ... + 5079170.

Almost surely, 2^23155695290 is an apocalyptic number.

23155695290 is an abundant number, since it is smaller than the sum of its proper divisors (29136101974).

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

23155695290 is a wasteful number, since it uses less digits than its factorization.

23155695290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392 (or 5385 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 47.

The spelling of 23155695290 in words is "twenty-three billion, one hundred fifty-five million, six hundred ninety-five thousand, two hundred ninety".