651605652264 has 48 divisors (see below), whose sum is σ = 1894975624800. Its totient is φ = 186173043168.

The previous prime is 651605652241. The next prime is 651605652277. The reversal of 651605652264 is 462256506156.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277042044 + ... + 277044395.

It is an arithmetic number, because the mean of its divisors is an integer number (39478658850).

Almost surely, 2^651605652264 is an apocalyptic number.

It is an amenable number.

651605652264 is an abundant number, since it is smaller than the sum of its proper divisors (1243369972536).

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

651605652264 is a wasteful number, since it uses less digits than its factorization.

651605652264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554086462 (or 554086451 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 651605652264 in words is "six hundred fifty-one billion, six hundred five million, six hundred fifty-two thousand, two hundred sixty-four".