18080604864 has 840 divisors, whose sum is σ = 68111461440. Its totient is φ = 4709892096.

The previous prime is 18080604863. The next prime is 18080604901. The reversal of 18080604864 is 46840608081.

It is not an unprimeable number, because it can be changed into a prime (18080604863) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 228868377 + ... + 228868455.

Almost surely, 2^18080604864 is an apocalyptic number.

18080604864 is a gapful number since it is divisible by the number (14) 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 18080604864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34055730720).

18080604864 is an abundant number, since it is smaller than the sum of its proper divisors (50030856576).

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

18080604864 is a wasteful number, since it uses less digits than its factorization.

18080604864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 18080604864 in words is "eighteen billion, eighty million, six hundred four thousand, eight hundred sixty-four".