225516802868 has 36 divisors (see below), whose sum is σ = 459151604100. Its totient is φ = 96636621312.

The previous prime is 225516802859. The next prime is 225516802871. The reversal of 225516802868 is 868208615522.

It can be written as a sum of positive squares in 2 ways, for example, as 96483541924 + 129033260944 = 310618^2 + 359212^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1403396 + ... + 1555812.

It is an arithmetic number, because the mean of its divisors is an integer number (12754211225).

Almost surely, 2^225516802868 is an apocalyptic number.

225516802868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225516802868 is an abundant number, since it is smaller than the sum of its proper divisors (233634801232).

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

225516802868 is a wasteful number, since it uses less digits than its factorization.

225516802868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159984 (or 159975 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 225516802868 in words is "two hundred twenty-five billion, five hundred sixteen million, eight hundred two thousand, eight hundred sixty-eight".