15699479018356 has 48 divisors (see below), whose sum is σ = 31992072989184. Its totient is φ = 6601257501696.

The previous prime is 15699479018347. The next prime is 15699479018381. The reversal of 15699479018356 is 65381097499651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98744581 + ... + 98903443.

It is an arithmetic number, because the mean of its divisors is an integer number (666501520608).

Almost surely, 2^{15699479018356} is an apocalyptic number.

It is an amenable number.

15699479018356 is an abundant number, since it is smaller than the sum of its proper divisors (16292593970828).

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

15699479018356 is a wasteful number, since it uses less digits than its factorization.

15699479018356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225520 (or 225518 counting only the distinct ones).

The product of its (nonzero) digits is 440899200, while the sum is 73.

The spelling of 15699479018356 in words is "fifteen trillion, six hundred ninety-nine billion, four hundred seventy-nine million, eighteen thousand, three hundred fifty-six".