16255616139 has 20 divisors (see below), whose sum is σ = 27752093424. Its totient is φ = 9288923184.

The previous prime is 16255616119. The next prime is 16255616177. The reversal of 16255616139 is 93161655261.

16255616139 is a `hidden beast` number, since 1 + 6 + 2 + 556 + 1 + 61 + 39 = 666.

It is not a de Polignac number, because 16255616139 - 2⁵ = 16255616107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16255616094 and 16255616103.

It is not an unprimeable number, because it can be changed into a prime (16255616119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14334192 + ... + 14335325.

Almost surely, 2^16255616139 is an apocalyptic number.

16255616139 is a deficient number, since it is larger than the sum of its proper divisors (11496477285).

16255616139 is an equidigital number, since it uses as much as digits as its factorization.

16255616139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28669536 (or 28669527 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The spelling of 16255616139 in words is "sixteen billion, two hundred fifty-five million, six hundred sixteen thousand, one hundred thirty-nine".