18172460160 has 160 divisors (see below), whose sum is σ = 64897321500. Its totient is φ = 4845975552.

The previous prime is 18172460147. The next prime is 18172460167. The reversal of 18172460160 is 6106427181.

It is a happy number.

18172460160 is a `hidden beast` number, since 18 + 17 + 24 + 601 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14928929856 + 3243530304 = 122184^2 + 56952^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18172460167) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 123435 + ... + 227114.

Almost surely, 2^18172460160 is an apocalyptic number.

18172460160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18172460160 is an abundant number, since it is smaller than the sum of its proper divisors (46724861340).

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

18172460160 is an equidigital number, since it uses as much as digits as its factorization.

18172460160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350580 (or 350559 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 18172460160 in words is "eighteen billion, one hundred seventy-two million, four hundred sixty thousand, one hundred sixty".