12265445456 has 40 divisors (see below), whose sum is σ = 25952249664. Its totient is φ = 5569276160.

The previous prime is 12265445453. The next prime is 12265445519. The reversal of 12265445456 is 65454456221.

It is a super-2 number, since 2×12265445456² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12265445453) 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, 131165 + ... + 204291.

Almost surely, 2^12265445456 is an apocalyptic number.

12265445456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12265445456 is an abundant number, since it is smaller than the sum of its proper divisors (13686804208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12265445456 is a wasteful number, since it uses less digits than its factorization.

12265445456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74099 (or 74093 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 44.

The spelling of 12265445456 in words is "twelve billion, two hundred sixty-five million, four hundred forty-five thousand, four hundred fifty-six".