3656111613 has 96 divisors (see below), whose sum is σ = 6794357760. Its totient is φ = 1692817920.

The previous prime is 3656111611. The next prime is 3656111653. The reversal of 3656111613 is 3161116563.

It is not a de Polignac number, because 3656111613 - 2¹ = 3656111611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656111611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1416358 + ... + 1418936.

It is an arithmetic number, because the mean of its divisors is an integer number (70774560).

Almost surely, 2^3656111613 is an apocalyptic number.

3656111613 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3656111613 is a deficient number, since it is larger than the sum of its proper divisors (3138246147).

3656111613 is a wasteful number, since it uses less digits than its factorization.

3656111613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2636 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 3656111613 is about 60465.7887817566. The cubic root of 3656111613 is about 1540.5406002492.

The spelling of 3656111613 in words is "three billion, six hundred fifty-six million, one hundred eleven thousand, six hundred thirteen".