251164000155 has 16 divisors (see below), whose sum is σ = 401869281024. Its totient is φ = 133951839840.

The previous prime is 251164000127. The next prime is 251164000163. The reversal of 251164000155 is 551000461152.

It is not a de Polignac number, because 251164000155 - 2⁸ = 251163999899 is a prime.

It is a super-3 number, since 3×251164000155³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122490 + ... + 1327520.

It is an arithmetic number, because the mean of its divisors is an integer number (25116830064).

Almost surely, 2^251164000155 is an apocalyptic number.

251164000155 is a deficient number, since it is larger than the sum of its proper divisors (150705280869).

251164000155 is a wasteful number, since it uses less digits than its factorization.

251164000155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286706.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 251164000155 in words is "two hundred fifty-one billion, one hundred sixty-four million, one hundred fifty-five", and thus it is an aban number.