12066851412 has 72 divisors (see below), whose sum is σ = 38028873792. Its totient is φ = 3134246400.

The previous prime is 12066851371. The next prime is 12066851437. The reversal of 12066851412 is 21415866021.

It is a happy number.

12066851412 is a `hidden beast` number, since 120 + 6 + 6 + 8 + 514 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2173789 + ... + 2179332.

Almost surely, 2^12066851412 is an apocalyptic number.

12066851412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12066851412 is an abundant number, since it is smaller than the sum of its proper divisors (25962022380).

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

12066851412 is a wasteful number, since it uses less digits than its factorization.

12066851412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353149 (or 4353144 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 12066851412 in words is "twelve billion, sixty-six million, eight hundred fifty-one thousand, four hundred twelve".