18305312060 has 24 divisors (see below), whose sum is σ = 43932749280. Its totient is φ = 6276106944.

The previous prime is 18305312057. The next prime is 18305312083. The reversal of 18305312060 is 6021350381.

It is a super-2 number, since 2×18305312060² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65375975 + ... + 65376254.

It is an arithmetic number, because the mean of its divisors is an integer number (1830531220).

Almost surely, 2^18305312060 is an apocalyptic number.

18305312060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18305312060 is an abundant number, since it is smaller than the sum of its proper divisors (25627437220).

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

18305312060 is a wasteful number, since it uses less digits than its factorization.

18305312060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130752245 (or 130752243 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 18305312060 in words is "eighteen billion, three hundred five million, three hundred twelve thousand, sixty".