12660570 has 64 divisors (see below), whose sum is σ = 36368640. Its totient is φ = 3115584.

The previous prime is 12660569. The next prime is 12660589. The reversal of 12660570 is 7506621.

12660570 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 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 31 ways as a sum of consecutive naturals, for example, 1707 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (568260).

Almost surely, 2^12660570 is an apocalyptic number.

12660570 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 12660570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18184320).

12660570 is an abundant number, since it is smaller than the sum of its proper divisors (23708070).

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

12660570 is a wasteful number, since it uses less digits than its factorization.

12660570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636 (or 3630 counting only the distinct ones).

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

The square root of 12660570 is about 3558.1694731983. The cubic root of 12660570 is about 233.0689499810.

The spelling of 12660570 in words is "twelve million, six hundred sixty thousand, five hundred seventy".