18199572245880 has 64 divisors (see below), whose sum is σ = 54613166025600. Its totient is φ = 4851934884480.

The previous prime is 18199572245851. The next prime is 18199572245887. The reversal of 18199572245880 is 8854227599181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18199572245887) 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, 19613086 + ... + 20520045.

It is an arithmetic number, because the mean of its divisors is an integer number (853330719150).

Almost surely, 2^{18199572245880} is an apocalyptic number.

18199572245880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18199572245880 is an abundant number, since it is smaller than the sum of its proper divisors (36413593779720).

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

18199572245880 is a wasteful number, since it uses less digits than its factorization.

18199572245880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40136924 (or 40136920 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 69.

The spelling of 18199572245880 in words is "eighteen trillion, one hundred ninety-nine billion, five hundred seventy-two million, two hundred forty-five thousand, eight hundred eighty".