18325669620 has 24 divisors (see below), whose sum is σ = 51311875104. Its totient is φ = 4886845216.

The previous prime is 18325669601. The next prime is 18325669627. The reversal of 18325669620 is 2696652381.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18325669620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18325669627) 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, 152713854 + ... + 152713973.

It is an arithmetic number, because the mean of its divisors is an integer number (2137994796).

Almost surely, 2^18325669620 is an apocalyptic number.

18325669620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18325669620 is an abundant number, since it is smaller than the sum of its proper divisors (32986205484).

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

18325669620 is a wasteful number, since it uses less digits than its factorization.

18325669620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305427839 (or 305427837 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 18325669620 in words is "eighteen billion, three hundred twenty-five million, six hundred sixty-nine thousand, six hundred twenty".