13000660 has 24 divisors (see below), whose sum is σ = 27570816. Its totient is φ = 5148960.

The previous prime is 13000657. The next prime is 13000667. The reversal of 13000660 is 6600031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (1148784).

Almost surely, 2^13000660 is an apocalyptic number.

13000660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000660 is an abundant number, since it is smaller than the sum of its proper divisors (14570156).

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

13000660 is a wasteful number, since it uses less digits than its factorization.

13000660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423 (or 6421 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13000660 is about 3605.6427998347. The cubic root of 13000660 is about 235.1374478865.

Adding to 13000660 its reverse (6600031), we get a palindrome (19600691).

The spelling of 13000660 in words is "thirteen million, six hundred sixty", and thus it is an aban number.