12618660 has 48 divisors (see below), whose sum is σ = 37195200. Its totient is φ = 3187584.

The previous prime is 12618653. The next prime is 12618667. The reversal of 12618660 is 6681621.

It is an interprime number because it is at equal distance from previous prime (12618653) and next prime (12618667).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12618667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4395 + ... + 6674.

It is an arithmetic number, because the mean of its divisors is an integer number (774900).

Almost surely, 2^12618660 is an apocalyptic number.

12618660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12618660 is an abundant number, since it is smaller than the sum of its proper divisors (24576540).

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

12618660 is a wasteful number, since it uses less digits than its factorization.

12618660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100 (or 11098 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12618660 is about 3552.2753271671. The cubic root of 12618660 is about 232.8114913849.

The spelling of 12618660 in words is "twelve million, six hundred eighteen thousand, six hundred sixty".