656214465064 has 64 divisors (see below), whose sum is σ = 1256679014400. Its totient is φ = 321175108800.

The previous prime is 656214465061. The next prime is 656214465089. The reversal of 656214465064 is 460564412656.

It is a junction number, because it is equal to n+sod(n) for n = 656214464999 and 656214465017.

It is not an unprimeable number, because it can be changed into a prime (656214465061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 193514809 + ... + 193518199.

It is an arithmetic number, because the mean of its divisors is an integer number (19635609600).

Almost surely, 2^656214465064 is an apocalyptic number.

It is an amenable number.

656214465064 is a deficient number, since it is larger than the sum of its proper divisors (600464549336).

656214465064 is a wasteful number, since it uses less digits than its factorization.

656214465064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014 (or 6010 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 656214465064 in words is "six hundred fifty-six billion, two hundred fourteen million, four hundred sixty-five thousand, sixty-four".