651560566560 has 96 divisors (see below), whose sum is σ = 2060045991360. Its totient is φ = 173103541248.

The previous prime is 651560566541. The next prime is 651560566561. The reversal of 651560566560 is 65665065156.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (651560566561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2393962 + ... + 2652201.

It is an arithmetic number, because the mean of its divisors is an integer number (21458812410).

Almost surely, 2^651560566560 is an apocalyptic number.

651560566560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651560566560 is an abundant number, since it is smaller than the sum of its proper divisors (1408485424800).

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

651560566560 is a wasteful number, since it uses less digits than its factorization.

651560566560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046450 (or 5046442 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 651560566560 in words is "six hundred fifty-one billion, five hundred sixty million, five hundred sixty-six thousand, five hundred sixty".