12025600065 has 16 divisors (see below), whose sum is σ = 21378844800. Its totient is φ = 6413653296.

The previous prime is 12025600009. The next prime is 12025600109. The reversal of 12025600065 is 56000652021.

It is not a de Polignac number, because 12025600065 - 2⁸ = 12025599809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44539125 + ... + 44539394.

It is an arithmetic number, because the mean of its divisors is an integer number (1336177800).

Almost surely, 2^12025600065 is an apocalyptic number.

12025600065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12025600065 is a deficient number, since it is larger than the sum of its proper divisors (9353244735).

12025600065 is an equidigital number, since it uses as much as digits as its factorization.

12025600065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89078533 (or 89078527 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 12025600065 in words is "twelve billion, twenty-five million, six hundred thousand, sixty-five".