18366037716 has 48 divisors (see below), whose sum is σ = 48579540800. Its totient is φ = 5353661952.

The previous prime is 18366037687. The next prime is 18366037721. The reversal of 18366037716 is 61773066381.

It is a super-2 number, since 2×18366037716² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3095221 + ... + 3101148.

Almost surely, 2^18366037716 is an apocalyptic number.

It is an amenable number.

18366037716 is an abundant number, since it is smaller than the sum of its proper divisors (30213503084).

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

18366037716 is a wasteful number, since it uses less digits than its factorization.

18366037716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196408 (or 6196406 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 18366037716 in words is "eighteen billion, three hundred sixty-six million, thirty-seven thousand, seven hundred sixteen".