12453145466 has 4 divisors (see below), whose sum is σ = 18679718202. Its totient is φ = 6226572732.

The previous prime is 12453145447. The next prime is 12453145499. The reversal of 12453145466 is 66454135421.

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

It can be written as a sum of positive squares in only one way, i.e., 10669857025 + 1783288441 = 103295^2 + 42229^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113286365 + ... + 3113286368.

Almost surely, 2^12453145466 is an apocalyptic number.

12453145466 is a deficient number, since it is larger than the sum of its proper divisors (6226572736).

12453145466 is an equidigital number, since it uses as much as digits as its factorization.

12453145466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226572735.

The product of its digits is 345600, while the sum is 41.

The spelling of 12453145466 in words is "twelve billion, four hundred fifty-three million, one hundred forty-five thousand, four hundred sixty-six".