12575222166523 has 4 divisors (see below), whose sum is σ = 12575593556208. Its totient is φ = 12574850776840.

The previous prime is 12575222166497. The next prime is 12575222166557. The reversal of 12575222166523 is 32566122257521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12575222166523 - 2²¹ = 12575220069371 is a prime.

It is a super-2 number, since 2×12575222166523² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12575222166583) 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, 185644048 + ... + 185711773.

It is an arithmetic number, because the mean of its divisors is an integer number (3143898389052).

Almost surely, 2^{12575222166523} is an apocalyptic number.

12575222166523 is a deficient number, since it is larger than the sum of its proper divisors (371389685).

12575222166523 is an equidigital number, since it uses as much as digits as its factorization.

12575222166523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371389684.

The product of its digits is 3024000, while the sum is 49.

The spelling of 12575222166523 in words is "twelve trillion, five hundred seventy-five billion, two hundred twenty-two million, one hundred sixty-six thousand, five hundred twenty-three".