15664091255 has 16 divisors (see below), whose sum is σ = 18836955648. Its totient is φ = 12504612000.

The previous prime is 15664091251. The next prime is 15664091273. The reversal of 15664091255 is 55219046651.

It is not a de Polignac number, because 15664091255 - 2² = 15664091251 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 (15664091251) 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, 7788200 + ... + 7790210.

It is an arithmetic number, because the mean of its divisors is an integer number (1177309728).

Almost surely, 2^15664091255 is an apocalyptic number.

15664091255 is a deficient number, since it is larger than the sum of its proper divisors (3172864393).

15664091255 is a wasteful number, since it uses less digits than its factorization.

15664091255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 15664091255 in words is "fifteen billion, six hundred sixty-four million, ninety-one thousand, two hundred fifty-five".