15653604655 has 16 divisors (see below), whose sum is σ = 20514199104. Its totient is φ = 11396770560.

The previous prime is 15653604653. The next prime is 15653604671. The reversal of 15653604655 is 55640635651.

15653604655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15653604655 - 2¹ = 15653604653 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 (15653604653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691334 + ... + 1700563.

It is an arithmetic number, because the mean of its divisors is an integer number (1282137444).

Almost surely, 2^15653604655 is an apocalyptic number.

15653604655 is a deficient number, since it is larger than the sum of its proper divisors (4860594449).

15653604655 is a wasteful number, since it uses less digits than its factorization.

15653604655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391986.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 15653604655 in words is "fifteen billion, six hundred fifty-three million, six hundred four thousand, six hundred fifty-five".