6636056635691 has 24 divisors (see below), whose sum is σ = 7752802610160. Its totient is φ = 5663537010432.

The previous prime is 6636056635633. The next prime is 6636056635709. The reversal of 6636056635691 is 1965366506366.

It is not a de Polignac number, because 6636056635691 - 2³⁸ = 6361178728747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6636056635601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17688935 + ... + 18060191.

It is an arithmetic number, because the mean of its divisors is an integer number (323033442090).

Almost surely, 2^{6636056635691} is an apocalyptic number.

6636056635691 is a deficient number, since it is larger than the sum of its proper divisors (1116745974469).

6636056635691 is a wasteful number, since it uses less digits than its factorization.

6636056635691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372843 (or 372836 counting only the distinct ones).

The product of its (nonzero) digits is 94478400, while the sum is 62.

The spelling of 6636056635691 in words is "six trillion, six hundred thirty-six billion, fifty-six million, six hundred thirty-five thousand, six hundred ninety-one".