13061660 has 12 divisors (see below), whose sum is σ = 27429528. Its totient is φ = 5224656.

The previous prime is 13061641. The next prime is 13061663. The reversal of 13061660 is 6616031.

13061660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326522 + ... + 326561.

It is an arithmetic number, because the mean of its divisors is an integer number (2285794).

Almost surely, 2^13061660 is an apocalyptic number.

13061660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13061660 is an abundant number, since it is smaller than the sum of its proper divisors (14367868).

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

13061660 is a wasteful number, since it uses less digits than its factorization.

13061660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653092 (or 653090 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13061660 is about 3614.0918638020. The cubic root of 13061660 is about 235.5046346096.

Adding to 13061660 its reverse (6616031), we get a palindrome (19677691).

The spelling of 13061660 in words is "thirteen million, sixty-one thousand, six hundred sixty".