18366327207 has 8 divisors (see below), whose sum is σ = 27209373680. Its totient is φ = 12244218120.

The previous prime is 18366327157. The next prime is 18366327223. The reversal of 18366327207 is 70272366381.

18366327207 is a `hidden beast` number, since 1 + 8 + 3 + 6 + 632 + 7 + 2 + 0 + 7 = 666.

It is not a de Polignac number, because 18366327207 - 2⁷ = 18366327079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18366327277) 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, 340117144 + ... + 340117197.

It is an arithmetic number, because the mean of its divisors is an integer number (3401171710).

Almost surely, 2^18366327207 is an apocalyptic number.

18366327207 is a deficient number, since it is larger than the sum of its proper divisors (8843046473).

18366327207 is an equidigital number, since it uses as much as digits as its factorization.

18366327207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680234350 (or 680234344 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 18366327207 in words is "eighteen billion, three hundred sixty-six million, three hundred twenty-seven thousand, two hundred seven".