12662532513 has 6 divisors (see below), whose sum is σ = 18290324754. Its totient is φ = 8441688336.

The previous prime is 12662532503. The next prime is 12662532517. The reversal of 12662532513 is 31523526621.

12662532513 is a `hidden beast` number, since 1 + 2 + 6 + 625 + 3 + 25 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11731489344 + 931043169 = 108312^2 + 30513^2 .

It is not a de Polignac number, because 12662532513 - 2⁸ = 12662532257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12662532517) 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, 703474020 + ... + 703474037.

It is an arithmetic number, because the mean of its divisors is an integer number (3048387459).

Almost surely, 2^12662532513 is an apocalyptic number.

It is an amenable number.

12662532513 is a deficient number, since it is larger than the sum of its proper divisors (5627792241).

12662532513 is a wasteful number, since it uses less digits than its factorization.

12662532513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406948063 (or 1406948060 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 12662532513 in words is "twelve billion, six hundred sixty-two million, five hundred thirty-two thousand, five hundred thirteen".