251011020110152 has 16 divisors (see below), whose sum is σ = 471666586059900. Its totient is φ = 125233263827520.

The previous prime is 251011020110069. The next prime is 251011020110177.

It is a happy number.

251011020110152 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 229226079965796 + 21784940144356 = 15140214^2 + 4667434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34030774527 + ... + 34030781902.

Almost surely, 2^{251011020110152} is an apocalyptic number.

It is an amenable number.

251011020110152 is a deficient number, since it is larger than the sum of its proper divisors (220655565949748).

251011020110152 is a wasteful number, since it uses less digits than its factorization.

251011020110152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68061556896 (or 68061556892 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 22.

The spelling of 251011020110152 in words is "two hundred fifty-one trillion, eleven billion, twenty million, one hundred ten thousand, one hundred fifty-two".