12663214464 has 32 divisors (see below), whose sum is σ = 33636664440. Its totient is φ = 4221071360.

The previous prime is 12663214453. The next prime is 12663214471. The reversal of 12663214464 is 46441236621.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12663214464² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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, 16488177 + ... + 16488944.

Almost surely, 2^12663214464 is an apocalyptic number.

It is an amenable number.

12663214464 is an abundant number, since it is smaller than the sum of its proper divisors (20973449976).

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

12663214464 is an equidigital number, since it uses as much as digits as its factorization.

12663214464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32977138 (or 32977126 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The spelling of 12663214464 in words is "twelve billion, six hundred sixty-three million, two hundred fourteen thousand, four hundred sixty-four".