12666132612 has 36 divisors (see below), whose sum is σ = 36591050496. Its totient is φ = 3618894960.

The previous prime is 12666132587. The next prime is 12666132649. The reversal of 12666132612 is 21623166621.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25130964 + ... + 25131467.

Almost surely, 2^12666132612 is an apocalyptic number.

12666132612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12666132612 is an abundant number, since it is smaller than the sum of its proper divisors (23924917884).

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

12666132612 is a wasteful number, since it uses less digits than its factorization.

12666132612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50262448 (or 50262443 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 12666132612 in words is "twelve billion, six hundred sixty-six million, one hundred thirty-two thousand, six hundred twelve".