15716879064 has 320 divisors, whose sum is σ = 47505839040. Its totient is φ = 4843238400.

The previous prime is 15716879029. The next prime is 15716879071. The reversal of 15716879064 is 46097861751.

15716879064 is a `hidden beast` number, since 1 + 571 + 6 + 8 + 7 + 9 + 0 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 15716879064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 79781014 + ... + 79781210.

It is an arithmetic number, because the mean of its divisors is an integer number (148455747).

Almost surely, 2^15716879064 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 15716879064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23752919520).

15716879064 is an abundant number, since it is smaller than the sum of its proper divisors (31788959976).

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

15716879064 is a wasteful number, since it uses less digits than its factorization.

15716879064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 15716879064 in words is "fifteen billion, seven hundred sixteen million, eight hundred seventy-nine thousand, sixty-four".