18208141713220 has 12 divisors (see below), whose sum is σ = 38237097597804. Its totient is φ = 7283256685280.

The previous prime is 18208141713163. The next prime is 18208141713221. The reversal of 18208141713220 is 2231714180281.

It can be written as a sum of positive squares in 2 ways, for example, as 11559510405184 + 6648631308036 = 3399928^2 + 2578494^2 .

It is not an unprimeable number, because it can be changed into a prime (18208141713221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455203542811 + ... + 455203542850.

It is an arithmetic number, because the mean of its divisors is an integer number (3186424799817).

Almost surely, 2^{18208141713220} is an apocalyptic number.

18208141713220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18208141713220 is an abundant number, since it is smaller than the sum of its proper divisors (20028955884584).

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

18208141713220 is a wasteful number, since it uses less digits than its factorization.

18208141713220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910407085670 (or 910407085668 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 18208141713220 in words is "eighteen trillion, two hundred eight billion, one hundred forty-one million, seven hundred thirteen thousand, two hundred twenty".