12513666675 has 18 divisors (see below), whose sum is σ = 20690864068. Its totient is φ = 6673438880.

The previous prime is 12513666673. The next prime is 12513666679. The reversal of 12513666675 is 57666631521.

It is not a de Polignac number, because 12513666675 - 2¹ = 12513666673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12513666673) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 962317 + ... + 975233.

Almost surely, 2^12513666675 is an apocalyptic number.

12513666675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12513666675 is a deficient number, since it is larger than the sum of its proper divisors (8177197393).

12513666675 is an frugal number, since it uses more digits than its factorization.

12513666675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25847 (or 12925 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

Multiplying 12513666675 by its sum of digits (48), we get a square (600656000400 = 775020²).

The spelling of 12513666675 in words is "twelve billion, five hundred thirteen million, six hundred sixty-six thousand, six hundred seventy-five".