12664170 has 48 divisors (see below), whose sum is σ = 33126912. Its totient is φ = 3356640.

The previous prime is 12664153. The next prime is 12664181. The reversal of 12664170 is 7146621.

12664170 is a `hidden beast` number, since 12 + 6 + 641 + 7 + 0 = 666.

12664170 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19755 + ... + 20385.

It is an arithmetic number, because the mean of its divisors is an integer number (690144).

Almost surely, 2^12664170 is an apocalyptic number.

12664170 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 12664170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16563456).

12664170 is an abundant number, since it is smaller than the sum of its proper divisors (20462742).

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

12664170 is a wasteful number, since it uses less digits than its factorization.

12664170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12664170 is about 3558.6753153386. The cubic root of 12664170 is about 233.0910387365.

The spelling of 12664170 in words is "twelve million, six hundred sixty-four thousand, one hundred seventy".