12002155622406 has 24 divisors (see below), whose sum is σ = 26370933483024. Its totient is φ = 3944370391920.

The previous prime is 12002155622399. The next prime is 12002155622417. The reversal of 12002155622406 is 60422655120021.

12002155622406 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 21 + 5 + 5 + 622 + 4 + 0 + 6 = 666.

It is a congruent number.

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, 4695677761 + ... + 4695680316.

It is an arithmetic number, because the mean of its divisors is an integer number (1098788895126).

Almost surely, 2^{12002155622406} is an apocalyptic number.

12002155622406 is an abundant number, since it is smaller than the sum of its proper divisors (14368777860618).

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

12002155622406 is a wasteful number, since it uses less digits than its factorization.

12002155622406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9391358156 (or 9391358153 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 12002155622406 in words is "twelve trillion, two billion, one hundred fifty-five million, six hundred twenty-two thousand, four hundred six".