12665586248 has 24 divisors (see below), whose sum is σ = 27625195350. Its totient is φ = 5428108224.

The previous prime is 12665586239. The next prime is 12665586259. The reversal of 12665586248 is 84268556621.

It can be written as a sum of positive squares in only one way, i.e., 10654781284 + 2010804964 = 103222^2 + 44842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12665586248.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16154693 + ... + 16155476.

Almost surely, 2^12665586248 is an apocalyptic number.

It is an amenable number.

12665586248 is an abundant number, since it is smaller than the sum of its proper divisors (14959609102).

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

12665586248 is a wasteful number, since it uses less digits than its factorization.

12665586248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32310189 (or 32310178 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 53.

The spelling of 12665586248 in words is "twelve billion, six hundred sixty-five million, five hundred eighty-six thousand, two hundred forty-eight".