3656535676261 has 16 divisors (see below), whose sum is σ = 4145142536640. Its totient is φ = 3197555101440.

The previous prime is 3656535676217. The next prime is 3656535676289. The reversal of 3656535676261 is 1626765356563.

It is not a de Polignac number, because 3656535676261 - 2¹⁵ = 3656535643493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3656535676261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656535676961) 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, 15983661 + ... + 16210813.

It is an arithmetic number, because the mean of its divisors is an integer number (259071408540).

Almost surely, 2^{3656535676261} is an apocalyptic number.

It is an amenable number.

3656535676261 is a deficient number, since it is larger than the sum of its proper divisors (488606860379).

3656535676261 is a wasteful number, since it uses less digits than its factorization.

3656535676261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292356.

The product of its digits is 122472000, while the sum is 61.

The spelling of 3656535676261 in words is "three trillion, six hundred fifty-six billion, five hundred thirty-five million, six hundred seventy-six thousand, two hundred sixty-one".