12660777 has 12 divisors (see below), whose sum is σ = 18520320. Its totient is φ = 8333208.

The previous prime is 12660763. The next prime is 12660779. The reversal of 12660777 is 77706621.

It is not a de Polignac number, because 12660777 - 2¹¹ = 12658729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12660779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8193 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (1543360).

Almost surely, 2^12660777 is an apocalyptic number.

It is an amenable number.

12660777 is a deficient number, since it is larger than the sum of its proper divisors (5859543).

12660777 is a wasteful number, since it uses less digits than its factorization.

12660777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17892 (or 17889 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 12660777 is about 3558.1985610699. The cubic root of 12660777 is about 233.0702201979.

The spelling of 12660777 in words is "twelve million, six hundred sixty thousand, seven hundred seventy-seven".