656120675746 has 8 divisors (see below), whose sum is σ = 1026971492544. Its totient is φ = 313796844900.

The previous prime is 656120675731. The next prime is 656120675767. The reversal of 656120675746 is 647576021656.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×656120675746² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7131746430 + ... + 7131746521.

It is an arithmetic number, because the mean of its divisors is an integer number (128371436568).

Almost surely, 2^656120675746 is an apocalyptic number.

656120675746 is a deficient number, since it is larger than the sum of its proper divisors (370850816798).

656120675746 is a wasteful number, since it uses less digits than its factorization.

656120675746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14263492976.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 656120675746 in words is "six hundred fifty-six billion, one hundred twenty million, six hundred seventy-five thousand, seven hundred forty-six".