15688616042 has 16 divisors (see below), whose sum is σ = 25785382752. Its totient is φ = 7099771920.

The previous prime is 15688616029. The next prime is 15688616063. The reversal of 15688616042 is 24061688651.

15688616042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15688616042² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1565753 + ... + 1575740.

It is an arithmetic number, because the mean of its divisors is an integer number (1611586422).

Almost surely, 2^15688616042 is an apocalyptic number.

15688616042 is a deficient number, since it is larger than the sum of its proper divisors (10096766710).

15688616042 is a wasteful number, since it uses less digits than its factorization.

15688616042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141733.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 15688616042 in words is "fifteen billion, six hundred eighty-eight million, six hundred sixteen thousand, forty-two".