656122112345 has 32 divisors (see below), whose sum is σ = 947280614400. Its totient is φ = 426189145536.

The previous prime is 656122112329. The next prime is 656122112351. The reversal of 656122112345 is 543211221656.

It is not a de Polignac number, because 656122112345 - 2⁴ = 656122112329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656122112299 and 656122112308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7256102 + ... + 7345968.

It is an arithmetic number, because the mean of its divisors is an integer number (29602519200).

Almost surely, 2^656122112345 is an apocalyptic number.

It is an amenable number.

656122112345 is a deficient number, since it is larger than the sum of its proper divisors (291158502055).

656122112345 is a wasteful number, since it uses less digits than its factorization.

656122112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100877.

The product of its digits is 86400, while the sum is 38.

The spelling of 656122112345 in words is "six hundred fifty-six billion, one hundred twenty-two million, one hundred twelve thousand, three hundred forty-five".