18080500064 has 48 divisors (see below), whose sum is σ = 39035437056. Its totient is φ = 8175350400.

The previous prime is 18080500063. The next prime is 18080500069. The reversal of 18080500064 is 46000508081.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 18080500064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080500063) 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, 67232 + ... + 201695.

It is an arithmetic number, because the mean of its divisors is an integer number (813238272).

Almost surely, 2^18080500064 is an apocalyptic number.

It is an amenable number.

18080500064 is an abundant number, since it is smaller than the sum of its proper divisors (20954936992).

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

18080500064 is a wasteful number, since it uses less digits than its factorization.

18080500064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269139 (or 269131 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 18080500064 in words is "eighteen billion, eighty million, five hundred thousand, sixty-four".