12595616 has 36 divisors (see below), whose sum is σ = 27265266. Its totient is φ = 5723520.

The previous prime is 12595607. The next prime is 12595631. The reversal of 12595616 is 61659521.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 5856400 = 2596^2 + 2420^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2246 + ... + 5498.

Almost surely, 2^12595616 is an apocalyptic number.

12595616 is a gapful number since it is divisible by the number (16) 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 12595616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13632633).

12595616 is an abundant number, since it is smaller than the sum of its proper divisors (14669650).

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

12595616 is a wasteful number, since it uses less digits than its factorization.

12595616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285 (or 3266 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 12595616 is about 3549.0302900933. The cubic root of 12595616 is about 232.6696861247.

The spelling of 12595616 in words is "twelve million, five hundred ninety-five thousand, six hundred sixteen".