5656643506673 has 8 divisors (see below), whose sum is σ = 5853823991040. Its totient is φ = 5460382279440.

The previous prime is 5656643506663. The next prime is 5656643506721. The reversal of 5656643506673 is 3766053466565.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5656643506673 - 2²² = 5656639312369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5656643506663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229801763 + ... + 229826376.

It is an arithmetic number, because the mean of its divisors is an integer number (731727998880).

Almost surely, 2^{5656643506673} is an apocalyptic number.

It is an amenable number.

5656643506673 is a deficient number, since it is larger than the sum of its proper divisors (197180484367).

5656643506673 is a wasteful number, since it uses less digits than its factorization.

5656643506673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459628567.

The product of its (nonzero) digits is 244944000, while the sum is 62.

The spelling of 5656643506673 in words is "five trillion, six hundred fifty-six billion, six hundred forty-three million, five hundred six thousand, six hundred seventy-three".