18153739116 has 60 divisors (see below), whose sum is σ = 49093949520. Its totient is φ = 5842579680.

The previous prime is 18153739099. The next prime is 18153739127. The reversal of 18153739116 is 61193735181.

18153739116 is a `hidden beast` number, since 1 + 81 + 537 + 39 + 1 + 1 + 6 = 666.

It is a super-2 number, since 2×18153739116² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 956640 + ... + 975431.

It is an arithmetic number, because the mean of its divisors is an integer number (818232492).

Almost surely, 2^18153739116 is an apocalyptic number.

It is an amenable number.

18153739116 is an abundant number, since it is smaller than the sum of its proper divisors (30940210404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18153739116 is a wasteful number, since it uses less digits than its factorization.

18153739116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932116 (or 1932105 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 18153739116 in words is "eighteen billion, one hundred fifty-three million, seven hundred thirty-nine thousand, one hundred sixteen".