18032025660 has 48 divisors (see below), whose sum is σ = 55079644032. Its totient is φ = 4371400000.

The previous prime is 18032025659. The next prime is 18032025667. The reversal of 18032025660 is 6652023081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18032025667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13659966 + ... + 13661285.

It is an arithmetic number, because the mean of its divisors is an integer number (1147492584).

Almost surely, 2^18032025660 is an apocalyptic number.

18032025660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18032025660 is an abundant number, since it is smaller than the sum of its proper divisors (37047618372).

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

18032025660 is a wasteful number, since it uses less digits than its factorization.

18032025660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27321274 (or 27321272 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 18032025660 in words is "eighteen billion, thirty-two million, twenty-five thousand, six hundred sixty".