12575565630 has 64 divisors (see below), whose sum is σ = 33549249600. Its totient is φ = 3352043520.

The previous prime is 12575565623. The next prime is 12575565631. The reversal of 12575565630 is 3656557521.

12575565630 is a `hidden beast` number, since 1 + 2 + 5 + 7 + 5 + 5 + 6 + 5 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575565631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 717370 + ... + 734690.

It is an arithmetic number, because the mean of its divisors is an integer number (524207025).

Almost surely, 2^12575565630 is an apocalyptic number.

12575565630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12575565630 is an abundant number, since it is smaller than the sum of its proper divisors (20973683970).

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

12575565630 is a wasteful number, since it uses less digits than its factorization.

12575565630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20026 (or 20020 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 12575565630 in words is "twelve billion, five hundred seventy-five million, five hundred sixty-five thousand, six hundred thirty".