18899162116 has 24 divisors (see below), whose sum is σ = 33220180224. Its totient is φ = 9407728320.

The previous prime is 18899162083. The next prime is 18899162119. The reversal of 18899162116 is 61126199881.

It is not an unprimeable number, because it can be changed into a prime (18899162119) 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, 2007781 + ... + 2017171.

It is an arithmetic number, because the mean of its divisors is an integer number (1384174176).

Almost surely, 2^18899162116 is an apocalyptic number.

It is an amenable number.

18899162116 is a deficient number, since it is larger than the sum of its proper divisors (14321018108).

18899162116 is a wasteful number, since it uses less digits than its factorization.

18899162116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11571 (or 11569 counting only the distinct ones).

The product of its digits is 373248, while the sum is 52.

The spelling of 18899162116 in words is "eighteen billion, eight hundred ninety-nine million, one hundred sixty-two thousand, one hundred sixteen".