18736116365 has 16 divisors (see below), whose sum is σ = 23537340288. Its totient is φ = 14290474176.

The previous prime is 18736116349. The next prime is 18736116367. The reversal of 18736116365 is 56361163781.

It is a cyclic number.

It is not a de Polignac number, because 18736116365 - 2⁴ = 18736116349 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 (18736116367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230042 + ... + 300651.

It is an arithmetic number, because the mean of its divisors is an integer number (1471083768).

Almost surely, 2^18736116365 is an apocalyptic number.

It is an amenable number.

18736116365 is a deficient number, since it is larger than the sum of its proper divisors (4801223923).

18736116365 is a wasteful number, since it uses less digits than its factorization.

18736116365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531028.

The product of its digits is 544320, while the sum is 47.

The spelling of 18736116365 in words is "eighteen billion, seven hundred thirty-six million, one hundred sixteen thousand, three hundred sixty-five".