18365755699964 has 6 divisors (see below), whose sum is σ = 32140072474944. Its totient is φ = 9182877849980.

The previous prime is 18365755699957. The next prime is 18365755700027. The reversal of 18365755699964 is 46999655756381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295719462492 + ... + 2295719462499.

It is an arithmetic number, because the mean of its divisors is an integer number (5356678745824).

Almost surely, 2^{18365755699964} is an apocalyptic number.

It is an amenable number.

18365755699964 is a deficient number, since it is larger than the sum of its proper divisors (13774316774980).

18365755699964 is a wasteful number, since it uses less digits than its factorization.

18365755699964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591438924995 (or 4591438924993 counting only the distinct ones).

The product of its digits is 13226976000, while the sum is 83.

The spelling of 18365755699964 in words is "eighteen trillion, three hundred sixty-five billion, seven hundred fifty-five million, six hundred ninety-nine thousand, nine hundred sixty-four".