656050666601 has 16 divisors (see below), whose sum is σ = 719075605248. Its totient is φ = 593591952000.

The previous prime is 656050666519. The next prime is 656050666603. The reversal of 656050666601 is 106666050656.

It is a cyclic number.

It is not a de Polignac number, because 656050666601 - 2²² = 656046472297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656050666603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5971175 + ... + 6080051.

It is an arithmetic number, because the mean of its divisors is an integer number (44942225328).

Almost surely, 2^656050666601 is an apocalyptic number.

It is an amenable number.

656050666601 is a deficient number, since it is larger than the sum of its proper divisors (63024938647).

656050666601 is a wasteful number, since it uses less digits than its factorization.

656050666601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111472.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 656050666601 in words is "six hundred fifty-six billion, fifty million, six hundred sixty-six thousand, six hundred one".