15699970664 has 16 divisors (see below), whose sum is σ = 33642794400. Its totient is φ = 6728558832.

The previous prime is 15699970651. The next prime is 15699970681. The reversal of 15699970664 is 46607999651.

15699970664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15699970597 and 15699970606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140178254 + ... + 140178365.

It is an arithmetic number, because the mean of its divisors is an integer number (2102674650).

Almost surely, 2^15699970664 is an apocalyptic number.

15699970664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15699970664 is an abundant number, since it is smaller than the sum of its proper divisors (17942823736).

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

15699970664 is a wasteful number, since it uses less digits than its factorization.

15699970664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280356632 (or 280356628 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 15699970664 in words is "fifteen billion, six hundred ninety-nine million, nine hundred seventy thousand, six hundred sixty-four".