23155163503204 has 24 divisors (see below), whose sum is σ = 41515911372600. Its totient is φ = 11293556785920.

The previous prime is 23155163503201. The next prime is 23155163503237. The reversal of 23155163503204 is 40230536155132.

It can be written as a sum of positive squares in 4 ways, for example, as 5422238244900 + 17732925258304 = 2328570^2 + 4211048^2 .

It is a super-2 number, since 2×23155163503204² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23155163503201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150819 + ... + 11403850.

It is an arithmetic number, because the mean of its divisors is an integer number (1729829640525).

Almost surely, 2^{23155163503204} is an apocalyptic number.

It is an amenable number.

23155163503204 is a deficient number, since it is larger than the sum of its proper divisors (18360747869396).

23155163503204 is a wasteful number, since it uses less digits than its factorization.

23155163503204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20561583 (or 20561581 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 23155163503204 its reverse (40230536155132), we get a palindrome (63385699658336).

The spelling of 23155163503204 in words is "twenty-three trillion, one hundred fifty-five billion, one hundred sixty-three million, five hundred three thousand, two hundred four".