12554646985 has 16 divisors (see below), whose sum is σ = 15324019200. Its totient is φ = 9871669440.

The previous prime is 12554646953. The next prime is 12554647051. The reversal of 12554646985 is 58964645521.

It is a happy number.

12554646985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12554646985 - 2⁵ = 12554646953 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 411984 + ... + 441406.

It is an arithmetic number, because the mean of its divisors is an integer number (957751200).

Almost surely, 2^12554646985 is an apocalyptic number.

It is an amenable number.

12554646985 is a deficient number, since it is larger than the sum of its proper divisors (2769372215).

12554646985 is a wasteful number, since it uses less digits than its factorization.

12554646985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30888.

The product of its digits is 10368000, while the sum is 55.

The spelling of 12554646985 in words is "twelve billion, five hundred fifty-four million, six hundred forty-six thousand, nine hundred eighty-five".