16515016659 has 12 divisors (see below), whose sum is σ = 23884448952. Its totient is φ = 10996430400.

The previous prime is 16515016613. The next prime is 16515016667. The reversal of 16515016659 is 95661051561.

It is not a de Polignac number, because 16515016659 - 2⁸ = 16515016403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16515016759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1124022 + ... + 1138619.

It is an arithmetic number, because the mean of its divisors is an integer number (1990370746).

Almost surely, 2^16515016659 is an apocalyptic number.

16515016659 is a deficient number, since it is larger than the sum of its proper divisors (7369432293).

16515016659 is a wasteful number, since it uses less digits than its factorization.

16515016659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263458 (or 2263455 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 16515016659 in words is "sixteen billion, five hundred fifteen million, sixteen thousand, six hundred fifty-nine".