12066278031 has 24 divisors (see below), whose sum is σ = 17842647680. Its totient is φ = 7853476176.

The previous prime is 12066278027. The next prime is 12066278039. The reversal of 12066278031 is 13087266021.

12066278031 is a `hidden beast` number, since 1 + 20 + 6 + 627 + 8 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 12066278031 - 2² = 12066278027 is a prime.

It is a super-2 number, since 2×12066278031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066278039) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1018500 + ... + 1030278.

Almost surely, 2^12066278031 is an apocalyptic number.

12066278031 is a deficient number, since it is larger than the sum of its proper divisors (5776369649).

12066278031 is a wasteful number, since it uses less digits than its factorization.

12066278031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475 (or 14472 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 12066278031 in words is "twelve billion, sixty-six million, two hundred seventy-eight thousand, thirty-one".