12599998560 has 288 divisors, whose sum is σ = 44261773920. Its totient is φ = 3262685184.

The previous prime is 12599998559. The next prime is 12599998573. The reversal of 12599998560 is 6589999521.

12599998560 is a `hidden beast` number, since 12 + 59 + 9 + 9 + 9 + 8 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7042146 + ... + 7043934.

It is an arithmetic number, because the mean of its divisors is an integer number (153686715).

Almost surely, 2^12599998560 is an apocalyptic number.

12599998560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12599998560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22130886960).

12599998560 is an abundant number, since it is smaller than the sum of its proper divisors (31661775360).

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

12599998560 is a wasteful number, since it uses less digits than its factorization.

12599998560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 63.

The spelling of 12599998560 in words is "twelve billion, five hundred ninety-nine million, nine hundred ninety-eight thousand, five hundred sixty".