3656662635551 has 16 divisors (see below), whose sum is σ = 3791757840000. Its totient is φ = 3522177340416.

The previous prime is 3656662635539. The next prime is 3656662635569. The reversal of 3656662635551 is 1555362666563.

3656662635551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3656662635551 - 2³⁰ = 3655588893727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656662635251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21277295 + ... + 21448463.

It is an arithmetic number, because the mean of its divisors is an integer number (236984865000).

Almost surely, 2^{3656662635551} is an apocalyptic number.

3656662635551 is a deficient number, since it is larger than the sum of its proper divisors (135095204449).

3656662635551 is a wasteful number, since it uses less digits than its factorization.

3656662635551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172946.

The product of its digits is 87480000, while the sum is 59.

The spelling of 3656662635551 in words is "three trillion, six hundred fifty-six billion, six hundred sixty-two million, six hundred thirty-five thousand, five hundred fifty-one".