251020151152 has 20 divisors (see below), whose sum is σ = 489850479160. Its totient is φ = 124607124288.

The previous prime is 251020151117. The next prime is 251020151159. The reversal of 251020151152 is 251151020152.

It is a happy number.

It is a super-2 number, since 2×251020151152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251020151159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56432163 + ... + 56436610.

It is an arithmetic number, because the mean of its divisors is an integer number (24492523958).

Almost surely, 2^251020151152 is an apocalyptic number.

It is an amenable number.

251020151152 is a deficient number, since it is larger than the sum of its proper divisors (238830328008).

251020151152 is a wasteful number, since it uses less digits than its factorization.

251020151152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112868920 (or 112868914 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 251020151152 in words is "two hundred fifty-one billion, twenty million, one hundred fifty-one thousand, one hundred fifty-two".