12550621446 has 24 divisors (see below), whose sum is σ = 29665105704. Its totient is φ = 3803218560.

The previous prime is 12550621427. The next prime is 12550621451. The reversal of 12550621446 is 64412605521.

12550621446 is a `hidden beast` number, since 1 + 2 + 5 + 506 + 2 + 144 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12550621446.

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, 31693291 + ... + 31693686.

It is an arithmetic number, because the mean of its divisors is an integer number (1236046071).

Almost surely, 2^12550621446 is an apocalyptic number.

12550621446 is an abundant number, since it is smaller than the sum of its proper divisors (17114484258).

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

12550621446 is a wasteful number, since it uses less digits than its factorization.

12550621446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63386996 (or 63386993 counting only the distinct ones).

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

The spelling of 12550621446 in words is "twelve billion, five hundred fifty million, six hundred twenty-one thousand, four hundred forty-six".