15165606655 has 8 divisors (see below), whose sum is σ = 18320868000. Its totient is φ = 12051058656.

The previous prime is 15165606641. The next prime is 15165606667. The reversal of 15165606655 is 55660656151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15165606655 - 2⁷ = 15165606527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10177515 + ... + 10179004.

It is an arithmetic number, because the mean of its divisors is an integer number (2290108500).

Almost surely, 2^15165606655 is an apocalyptic number.

15165606655 is a deficient number, since it is larger than the sum of its proper divisors (3155261345).

15165606655 is a wasteful number, since it uses less digits than its factorization.

15165606655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20356673.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 15165606655 in words is "fifteen billion, one hundred sixty-five million, six hundred six thousand, six hundred fifty-five".