12665070 has 72 divisors (see below), whose sum is σ = 36226008. Its totient is φ = 3067680.

The previous prime is 12665069. The next prime is 12665071. The reversal of 12665070 is 7056621.

12665070 is a `hidden beast` number, since 1 + 2 + 6 + 650 + 7 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12665069) and next prime (12665071).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665071) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10309 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (503139).

Almost surely, 2^12665070 is an apocalyptic number.

12665070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12665070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18113004).

12665070 is an abundant number, since it is smaller than the sum of its proper divisors (23560938).

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

12665070 is a wasteful number, since it uses less digits than its factorization.

12665070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 12665070 is about 3558.8017646393. The cubic root of 12665070 is about 233.0965602713.

It can be divided in two parts, 1266 and 5070, that added together give a palindrome (6336).

The spelling of 12665070 in words is "twelve million, six hundred sixty-five thousand, seventy".