12554135999 has 16 divisors (see below), whose sum is σ = 13284311040. Its totient is φ = 11844696000.

The previous prime is 12554135987. The next prime is 12554136029. The reversal of 12554135999 is 99953145521.

It is a cyclic number.

It is not a de Polignac number, because 12554135999 - 2¹² = 12554131903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12554135999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554135929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2680742 + ... + 2685420.

It is an arithmetic number, because the mean of its divisors is an integer number (830269440).

Almost surely, 2^12554135999 is an apocalyptic number.

12554135999 is a deficient number, since it is larger than the sum of its proper divisors (730175041).

12554135999 is a wasteful number, since it uses less digits than its factorization.

12554135999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862.

The product of its digits is 2187000, while the sum is 53.

The spelling of 12554135999 in words is "twelve billion, five hundred fifty-four million, one hundred thirty-five thousand, nine hundred ninety-nine".