16693790087 has 6 divisors (see below), whose sum is σ = 18076707792. Its totient is φ = 15409652232.

The previous prime is 16693790059. The next prime is 16693790107. The reversal of 16693790087 is 78009739661.

It is not a de Polignac number, because 16693790087 - 2¹⁸ = 16693527943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16693790387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49389743 + ... + 49390080.

It is an arithmetic number, because the mean of its divisors is an integer number (3012784632).

Almost surely, 2^16693790087 is an apocalyptic number.

16693790087 is a deficient number, since it is larger than the sum of its proper divisors (1382917705).

16693790087 is an equidigital number, since it uses as much as digits as its factorization.

16693790087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98779849 (or 98779836 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 16693790087 in words is "sixteen billion, six hundred ninety-three million, seven hundred ninety thousand, eighty-seven".