12399064560 has 120 divisors (see below), whose sum is σ = 42142083984. Its totient is φ = 3266565120.

The previous prime is 12399064553. The next prime is 12399064607. The reversal of 12399064560 is 6546099321.

12399064560 is a `hidden beast` number, since 1 + 23 + 9 + 9 + 0 + 64 + 560 = 666.

12399064560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 43981 + ... + 163500.

Almost surely, 2^12399064560 is an apocalyptic number.

12399064560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12399064560 is an abundant number, since it is smaller than the sum of its proper divisors (29743019424).

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

12399064560 is a wasteful number, since it uses less digits than its factorization.

12399064560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207583 (or 207574 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 12399064560 in words is "twelve billion, three hundred ninety-nine million, sixty-four thousand, five hundred sixty".