12551902866 has 48 divisors (see below), whose sum is σ = 28207504728. Its totient is φ = 4030560000.

The previous prime is 12551902837. The next prime is 12551902877. The reversal of 12551902866 is 66820915521.

12551902866 is a `hidden beast` number, since 1 + 2 + 551 + 90 + 2 + 8 + 6 + 6 = 666.

12551902866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11562485841 + 989417025 = 107529^2 + 31455^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26035 + ... + 160566.

Almost surely, 2^12551902866 is an apocalyptic number.

12551902866 is an abundant number, since it is smaller than the sum of its proper divisors (15655601862).

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

12551902866 is a wasteful number, since it uses less digits than its factorization.

12551902866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186747 (or 186744 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 12551902866 in words is "twelve billion, five hundred fifty-one million, nine hundred two thousand, eight hundred sixty-six".