3656013655 has 16 divisors (see below), whose sum is σ = 5063609664. Its totient is φ = 2482156800.

The previous prime is 3656013629. The next prime is 3656013677. The reversal of 3656013655 is 5563106563.

It is not a de Polignac number, because 3656013655 - 2²¹ = 3653916503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513582 + ... + 520651.

It is an arithmetic number, because the mean of its divisors is an integer number (316475604).

Almost surely, 2^3656013655 is an apocalyptic number.

3656013655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3656013655 is a deficient number, since it is larger than the sum of its proper divisors (1407596009).

3656013655 is a wasteful number, since it uses less digits than its factorization.

3656013655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034346.

The product of its (nonzero) digits is 243000, while the sum is 40.

The square root of 3656013655 is about 60464.9787480323. The cubic root of 3656013655 is about 1540.5268415861.

The spelling of 3656013655 in words is "three billion, six hundred fifty-six million, thirteen thousand, six hundred fifty-five".