656609119648 has 48 divisors (see below), whose sum is σ = 1297753156224. Its totient is φ = 327022585600.

The previous prime is 656609119631. The next prime is 656609119681. The reversal of 656609119648 is 846911906656.

It is a super-2 number, since 2×656609119648² (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 7 ways as a sum of consecutive naturals, for example, 13843173 + ... + 13890523.

It is an arithmetic number, because the mean of its divisors is an integer number (27036524088).

Almost surely, 2^656609119648 is an apocalyptic number.

It is an amenable number.

656609119648 is a deficient number, since it is larger than the sum of its proper divisors (641144036576).

656609119648 is a wasteful number, since it uses less digits than its factorization.

656609119648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49045 (or 49037 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 656609119648 in words is "six hundred fifty-six billion, six hundred nine million, one hundred nineteen thousand, six hundred forty-eight".