15339809664 has 96 divisors (see below), whose sum is σ = 44532914400. Its totient is φ = 5067976704.

The previous prime is 15339809633. The next prime is 15339809671. The reversal of 15339809664 is 46690893351.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 15339809664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71257 + ... + 189095.

It is an arithmetic number, because the mean of its divisors is an integer number (463884525).

Almost surely, 2^15339809664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15339809664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22266457200).

15339809664 is an abundant number, since it is smaller than the sum of its proper divisors (29193104736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15339809664 is a wasteful number, since it uses less digits than its factorization.

15339809664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117972 (or 117957 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 15339809664 in words is "fifteen billion, three hundred thirty-nine million, eight hundred nine thousand, six hundred sixty-four".