15679346652 has 36 divisors (see below), whose sum is σ = 41357119440. Its totient is φ = 4999211712.

The previous prime is 15679346623. The next prime is 15679346671. The reversal of 15679346652 is 25664397651.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×15679346652² (a number of 21 digits) contains 22 as substring.

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, 9467377 + ... + 9469032.

Almost surely, 2^15679346652 is an apocalyptic number.

15679346652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15679346652 is an abundant number, since it is smaller than the sum of its proper divisors (25677772788).

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

15679346652 is a wasteful number, since it uses less digits than its factorization.

15679346652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18936442 (or 18936437 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The spelling of 15679346652 in words is "fifteen billion, six hundred seventy-nine million, three hundred forty-six thousand, six hundred fifty-two".