16031886099979 has 4 divisors (see below), whose sum is σ = 16091484189840. Its totient is φ = 15972288010120.

The previous prime is 16031886099961. The next prime is 16031886099997. The reversal of 16031886099979 is 97999068813061.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16031886099961) and next prime (16031886099997).

It is a cyclic number.

It is not a de Polignac number, because 16031886099979 - 2¹⁹ = 16031885575691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16031886999979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29799044527 + ... + 29799045064.

It is an arithmetic number, because the mean of its divisors is an integer number (4022871047460).

Almost surely, 2^{16031886099979} is an apocalyptic number.

16031886099979 is a deficient number, since it is larger than the sum of its proper divisors (59598089861).

16031886099979 is an equidigital number, since it uses as much as digits as its factorization.

16031886099979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59598089860.

The product of its (nonzero) digits is 317447424, while the sum is 76.

The spelling of 16031886099979 in words is "sixteen trillion, thirty-one billion, eight hundred eighty-six million, ninety-nine thousand, nine hundred seventy-nine".