18316508160 has 352 divisors, whose sum is σ = 61736209920. Its totient is φ = 4625989632.

The previous prime is 18316508099. The next prime is 18316508167. The reversal of 18316508160 is 6180561381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18316508167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49105734 + ... + 49106106.

It is an arithmetic number, because the mean of its divisors is an integer number (175386960).

Almost surely, 2^18316508160 is an apocalyptic number.

18316508160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18316508160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30868104960).

18316508160 is an abundant number, since it is smaller than the sum of its proper divisors (43419701760).

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

18316508160 is a wasteful number, since it uses less digits than its factorization.

18316508160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 18316508160 in words is "eighteen billion, three hundred sixteen million, five hundred eight thousand, one hundred sixty".