12660896654 has 12 divisors (see below), whose sum is σ = 22091972904. Its totient is φ = 5426098524.

The previous prime is 12660896653. The next prime is 12660896747. The reversal of 12660896654 is 45669806621.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12660896596 and 12660896605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660896653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64596314 + ... + 64596509.

It is an arithmetic number, because the mean of its divisors is an integer number (1840997742).

Almost surely, 2^12660896654 is an apocalyptic number.

12660896654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12660896654 is a deficient number, since it is larger than the sum of its proper divisors (9431076250).

12660896654 is a wasteful number, since it uses less digits than its factorization.

12660896654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129192839 (or 129192832 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 12660896654 in words is "twelve billion, six hundred sixty million, eight hundred ninety-six thousand, six hundred fifty-four".