12995554571 has 4 divisors (see below), whose sum is σ = 12996109152. Its totient is φ = 12994999992.

The previous prime is 12995554531. The next prime is 12995554573. The reversal of 12995554571 is 17545559921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17545559921 = 1801 ⋅9742121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12995554571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12995554573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240515 + ... + 289548.

It is an arithmetic number, because the mean of its divisors is an integer number (3249027288).

Almost surely, 2^12995554571 is an apocalyptic number.

12995554571 is a deficient number, since it is larger than the sum of its proper divisors (554581).

12995554571 is an equidigital number, since it uses as much as digits as its factorization.

12995554571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554580.

The product of its digits is 2835000, while the sum is 53.

The spelling of 12995554571 in words is "twelve billion, nine hundred ninety-five million, five hundred fifty-four thousand, five hundred seventy-one".