18130730160 has 40 divisors (see below), whose sum is σ = 56205264240. Its totient is φ = 4834861312.

The previous prime is 18130730147. The next prime is 18130730161. The reversal of 18130730160 is 6103703181.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×18130730160² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (18130730161) by changing a digit.

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, 37772115 + ... + 37772594.

It is an arithmetic number, because the mean of its divisors is an integer number (1405131606).

Almost surely, 2^18130730160 is an apocalyptic number.

18130730160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18130730160 is an abundant number, since it is smaller than the sum of its proper divisors (38074534080).

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

18130730160 is a wasteful number, since it uses less digits than its factorization.

18130730160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75544725 (or 75544719 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 18130730160 in words is "eighteen billion, one hundred thirty million, seven hundred thirty thousand, one hundred sixty".