251151155396 has 96 divisors (see below), whose sum is σ = 473379379200. Its totient is φ = 116324651520.

The previous prime is 251151155389. The next prime is 251151155449. The reversal of 251151155396 is 693551151152.

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 31 ways as a sum of consecutive naturals, for example, 117965660 + ... + 117967788.

It is an arithmetic number, because the mean of its divisors is an integer number (4931035200).

Almost surely, 2^251151155396 is an apocalyptic number.

It is an amenable number.

251151155396 is a deficient number, since it is larger than the sum of its proper divisors (222228223804).

251151155396 is a wasteful number, since it uses less digits than its factorization.

251151155396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2527 counting only the distinct ones).

The product of its digits is 202500, while the sum is 44.

The spelling of 251151155396 in words is "two hundred fifty-one billion, one hundred fifty-one million, one hundred fifty-five thousand, three hundred ninety-six".