16636099085 has 16 divisors (see below), whose sum is σ = 20392943616. Its totient is φ = 13022598528.

The previous prime is 16636099061. The next prime is 16636099093. The reversal of 16636099085 is 58099063661.

It is a cyclic number.

It is not a de Polignac number, because 16636099085 - 2¹⁸ = 16635836941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775924 + ... + 1785266.

It is an arithmetic number, because the mean of its divisors is an integer number (1274558976).

Almost surely, 2^16636099085 is an apocalyptic number.

It is an amenable number.

16636099085 is a deficient number, since it is larger than the sum of its proper divisors (3756844531).

16636099085 is an equidigital number, since it uses as much as digits as its factorization.

16636099085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16972.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 16636099085 in words is "sixteen billion, six hundred thirty-six million, ninety-nine thousand, eighty-five".