651252404252156 has 24 divisors (see below), whose sum is σ = 1302508618625760. Its totient is φ = 279107356796352.

The previous prime is 651252404252137. The next prime is 651252404252173.

651252404252156 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24226655 + ... + 43467638.

It is an arithmetic number, because the mean of its divisors is an integer number (54271192442740).

Almost surely, 2^{651252404252156} is an apocalyptic number.

It is an amenable number.

651252404252156 is an abundant number, since it is smaller than the sum of its proper divisors (651256214373604).

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

651252404252156 is a wasteful number, since it uses less digits than its factorization.

651252404252156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68037893 (or 68037891 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 50.

It can be divided in two parts, 65125240 and 4252156, that added together give a palindrome (69377396).

The spelling of 651252404252156 in words is "six hundred fifty-one trillion, two hundred fifty-two billion, four hundred four million, two hundred fifty-two thousand, one hundred fifty-six".