656766324242 has 16 divisors (see below), whose sum is σ = 1127126477760. Its totient is φ = 281160944208.

The previous prime is 656766324209. The next prime is 656766324257. The reversal of 656766324242 is 242423667656.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 25848317 + ... + 25873712.

It is an arithmetic number, because the mean of its divisors is an integer number (70445404860).

Almost surely, 2^656766324242 is an apocalyptic number.

656766324242 is a deficient number, since it is larger than the sum of its proper divisors (470360153518).

656766324242 is a wasteful number, since it uses less digits than its factorization.

656766324242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51722945.

The product of its digits is 17418240, while the sum is 53.

The spelling of 656766324242 in words is "six hundred fifty-six billion, seven hundred sixty-six million, three hundred twenty-four thousand, two hundred forty-two".