16688500534 has 16 divisors (see below), whose sum is σ = 26509549968. Its totient is φ = 7852142592.

The previous prime is 16688500511. The next prime is 16688500567. The reversal of 16688500534 is 43500588661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193654 + ... + 266230.

It is an arithmetic number, because the mean of its divisors is an integer number (1656846873).

Almost surely, 2^16688500534 is an apocalyptic number.

16688500534 is a deficient number, since it is larger than the sum of its proper divisors (9821049434).

16688500534 is a wasteful number, since it uses less digits than its factorization.

16688500534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79359.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 16688500534 in words is "sixteen billion, six hundred eighty-eight million, five hundred thousand, five hundred thirty-four".