251154666132 has 48 divisors (see below), whose sum is σ = 596044612800. Its totient is φ = 82287616000.

The previous prime is 251154666101. The next prime is 251154666193. The reversal of 251154666132 is 231666451152.

It is a congruent number.

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, 5997844 + ... + 6039572.

It is an arithmetic number, because the mean of its divisors is an integer number (12417596100).

Almost surely, 2^251154666132 is an apocalyptic number.

It is an amenable number.

251154666132 is an abundant number, since it is smaller than the sum of its proper divisors (344889946668).

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

251154666132 is a wasteful number, since it uses less digits than its factorization.

251154666132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50296 (or 50294 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The spelling of 251154666132 in words is "two hundred fifty-one billion, one hundred fifty-four million, six hundred sixty-six thousand, one hundred thirty-two".