12066634980 has 36 divisors (see below), whose sum is σ = 36602126652. Its totient is φ = 3217769280.

The previous prime is 12066634967. The next prime is 12066634997. The reversal of 12066634980 is 8943666021.

It can be written as a sum of positive squares in 2 ways, for example, as 2423002176 + 9643632804 = 49224^2 + 98202^2 .

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 (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33518251 + ... + 33518610.

Almost surely, 2^12066634980 is an apocalyptic number.

12066634980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12066634980 is an abundant number, since it is smaller than the sum of its proper divisors (24535491672).

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

12066634980 is a wasteful number, since it uses less digits than its factorization.

12066634980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67036876 (or 67036871 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 12066634980 in words is "twelve billion, sixty-six million, six hundred thirty-four thousand, nine hundred eighty".