18664141412 has 12 divisors (see below), whose sum is σ = 37328282880. Its totient is φ = 7998917736.

The previous prime is 18664141399. The next prime is 18664141501. The reversal of 18664141412 is 21414146681.

It is a happy number.

18664141412 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333288212 + ... + 333288267.

It is an arithmetic number, because the mean of its divisors is an integer number (3110690240).

Almost surely, 2^18664141412 is an apocalyptic number.

It is an amenable number.

18664141412 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.

18664141412 is a wasteful number, since it uses less digits than its factorization.

18664141412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666576490 (or 666576488 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The spelling of 18664141412 in words is "eighteen billion, six hundred sixty-four million, one hundred forty-one thousand, four hundred twelve".