12006637775 has 24 divisors (see below), whose sum is σ = 16314622464. Its totient is φ = 8692898400.

The previous prime is 12006637763. The next prime is 12006637789. The reversal of 12006637775 is 57773660021.

It is not a de Polignac number, because 12006637775 - 2⁴ = 12006637759 is a prime.

It is a Duffinian number.

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, 36569 + ... + 159218.

It is an arithmetic number, because the mean of its divisors is an integer number (679775936).

Almost surely, 2^12006637775 is an apocalyptic number.

12006637775 is a deficient number, since it is larger than the sum of its proper divisors (4307984689).

12006637775 is a wasteful number, since it uses less digits than its factorization.

12006637775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196031 (or 196026 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 12006637775 in words is "twelve billion, six million, six hundred thirty-seven thousand, seven hundred seventy-five".