12465591455 has 4 divisors (see below), whose sum is σ = 14958709752. Its totient is φ = 9972473160.

The previous prime is 12465591427. The next prime is 12465591469. The reversal of 12465591455 is 55419556421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55419556421 = 19 ⋅2916818759.

It is a de Polignac number, because none of the positive numbers 2^k-12465591455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246559141 + ... + 1246559150.

It is an arithmetic number, because the mean of its divisors is an integer number (3739677438).

Almost surely, 2^12465591455 is an apocalyptic number.

12465591455 is a deficient number, since it is larger than the sum of its proper divisors (2493118297).

12465591455 is an equidigital number, since it uses as much as digits as its factorization.

12465591455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493118296.

The product of its digits is 1080000, while the sum is 47.

The spelling of 12465591455 in words is "twelve billion, four hundred sixty-five million, five hundred ninety-one thousand, four hundred fifty-five".