18365230680 has 32 divisors (see below), whose sum is σ = 55095692400. Its totient is φ = 4897394816.

The previous prime is 18365230669. The next prime is 18365230687. The reversal of 18365230680 is 8603256381.

It is a super-2 number, since 2×18365230680² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18365230687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76521675 + ... + 76521914.

Almost surely, 2^18365230680 is an apocalyptic number.

18365230680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18365230680 is an abundant number, since it is smaller than the sum of its proper divisors (36730461720).

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

18365230680 is a wasteful number, since it uses less digits than its factorization.

18365230680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153043603 (or 153043599 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 18365230680 in words is "eighteen billion, three hundred sixty-five million, two hundred thirty thousand, six hundred eighty".