12545795956 has 24 divisors (see below), whose sum is σ = 22059571520. Its totient is φ = 6243132672.

The previous prime is 12545795953. The next prime is 12545795957. The reversal of 12545795956 is 65959754521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12545795956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545795953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729796 + ... + 746788.

Almost surely, 2^12545795956 is an apocalyptic number.

It is an amenable number.

12545795956 is a deficient number, since it is larger than the sum of its proper divisors (9513775564).

12545795956 is a wasteful number, since it uses less digits than its factorization.

12545795956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17863 (or 17861 counting only the distinct ones).

The product of its digits is 17010000, while the sum is 58.

The spelling of 12545795956 in words is "twelve billion, five hundred forty-five million, seven hundred ninety-five thousand, nine hundred fifty-six".