12665056332 has 24 divisors (see below), whose sum is σ = 29555350272. Its totient is φ = 4221178000.

The previous prime is 12665056259. The next prime is 12665056361. The reversal of 12665056332 is 23365056621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48457 + ... + 166367.

It is an arithmetic number, because the mean of its divisors is an integer number (1231472928).

Almost surely, 2^12665056332 is an apocalyptic number.

12665056332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12665056332 is an abundant number, since it is smaller than the sum of its proper divisors (16890293940).

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

12665056332 is a wasteful number, since it uses less digits than its factorization.

12665056332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126869 (or 126867 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 12665056332 in words is "twelve billion, six hundred sixty-five million, fifty-six thousand, three hundred thirty-two".