15564465323 has 16 divisors (see below), whose sum is σ = 17274384000. Its totient is φ = 13903908480.

The previous prime is 15564465289. The next prime is 15564465341. The reversal of 15564465323 is 32356446551.

It is not a de Polignac number, because 15564465323 - 2²² = 15560271019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15564464323) 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, 2624840 + ... + 2630762.

It is an arithmetic number, because the mean of its divisors is an integer number (1079649000).

Almost surely, 2^15564465323 is an apocalyptic number.

15564465323 is a deficient number, since it is larger than the sum of its proper divisors (1709918677).

15564465323 is a wasteful number, since it uses less digits than its factorization.

15564465323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042.

The product of its digits is 1296000, while the sum is 44.

The spelling of 15564465323 in words is "fifteen billion, five hundred sixty-four million, four hundred sixty-five thousand, three hundred twenty-three".