252011021443155 has 72 divisors (see below), whose sum is σ = 478704162042288. Its totient is φ = 122572181392128.

The previous prime is 252011021443043. The next prime is 252011021443163. The reversal of 252011021443155 is 551344120110252.

252011021443155 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 1 + 1 + 0 + 214 + 431 + 5 + 5 = 666.

252011021443155 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252011021443155 - 2³⁵ = 251976661704787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 198992544 + ... + 200254973.

It is an arithmetic number, because the mean of its divisors is an integer number (6648668917254).

Almost surely, 2^{252011021443155} is an apocalyptic number.

252011021443155 is a deficient number, since it is larger than the sum of its proper divisors (226693140599133).

252011021443155 is a wasteful number, since it uses less digits than its factorization.

252011021443155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399247637 (or 399247621 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 252011021443155 in words is "two hundred fifty-two trillion, eleven billion, twenty-one million, four hundred forty-three thousand, one hundred fifty-five".