18170143868472 has 32 divisors (see below), whose sum is σ = 45560153043600. Its totient is φ = 6038742173184.

The previous prime is 18170143868423. The next prime is 18170143868501. The reversal of 18170143868472 is 27486834107181.

It is a super-2 number, since 2×18170143868472² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123269847 + ... + 1123286022.

Almost surely, 2^{18170143868472} is an apocalyptic number.

18170143868472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18170143868472 is an abundant number, since it is smaller than the sum of its proper divisors (27390009175128).

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

18170143868472 is a wasteful number, since it uses less digits than its factorization.

18170143868472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246556215 (or 2246556211 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 60.

The spelling of 18170143868472 in words is "eighteen trillion, one hundred seventy billion, one hundred forty-three million, eight hundred sixty-eight thousand, four hundred seventy-two".