15807147664 has 160 divisors (see below), whose sum is σ = 38898081792. Its totient is φ = 6094915200.

The previous prime is 15807147661. The next prime is 15807147673. The reversal of 15807147664 is 46674170851.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15807147661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15950209 + ... + 15951199.

Almost surely, 2^15807147664 is an apocalyptic number.

15807147664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15807147664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19449040896).

15807147664 is an abundant number, since it is smaller than the sum of its proper divisors (23090934128).

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

15807147664 is a wasteful number, since it uses less digits than its factorization.

15807147664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 15807147664 in words is "fifteen billion, eight hundred seven million, one hundred forty-seven thousand, six hundred sixty-four".