16890685502 has 16 divisors (see below), whose sum is σ = 25407804912. Its totient is φ = 8421451200.

The previous prime is 16890685459. The next prime is 16890685507. The reversal of 16890685502 is 20558609861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890685507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082468 + ... + 1097960.

It is an arithmetic number, because the mean of its divisors is an integer number (1587987807).

Almost surely, 2^16890685502 is an apocalyptic number.

16890685502 is a deficient number, since it is larger than the sum of its proper divisors (8517119410).

16890685502 is a wasteful number, since it uses less digits than its factorization.

16890685502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17003.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 16890685502 in words is "sixteen billion, eight hundred ninety million, six hundred eighty-five thousand, five hundred two".