12695616 has 140 divisors (see below), whose sum is σ = 39339520. Its totient is φ = 4043520.

The previous prime is 12695611. The next prime is 12695623. The reversal of 12695616 is 61659621.

It is a super-2 number, since 2×12695616² = 322357331238912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12695611) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 160665 + ... + 160743.

Almost surely, 2^12695616 is an apocalyptic number.

12695616 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 12695616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19669760).

12695616 is an abundant number, since it is smaller than the sum of its proper divisors (26643904).

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

12695616 is an equidigital number, since it uses as much as digits as its factorization.

12695616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 115 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 12695616 is about 3563.0907931177. The cubic root of 12695616 is about 233.2838062682.

The spelling of 12695616 in words is "twelve million, six hundred ninety-five thousand, six hundred sixteen".