18666370914 has 8 divisors (see below), whose sum is σ = 37332741840. Its totient is φ = 6222123636.

The previous prime is 18666370913. The next prime is 18666370997. The reversal of 18666370914 is 41907366681.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18666370914 is an admirable number.

It is a super-3 number, since 3×18666370914³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18666370913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555530904 + ... + 1555530915.

It is an arithmetic number, because the mean of its divisors is an integer number (4666592730).

Almost surely, 2^18666370914 is an apocalyptic number.

18666370914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18666370914 is a wasteful number, since it uses less digits than its factorization.

18666370914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111061824.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 18666370914 in words is "eighteen billion, six hundred sixty-six million, three hundred seventy thousand, nine hundred fourteen".