12665476682 has 16 divisors (see below), whose sum is σ = 19144323432. Its totient is φ = 6284141760.

The previous prime is 12665476673. The next prime is 12665476699. The reversal of 12665476682 is 28667456621.

It is a Cunningham number, because it is equal to 112541²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 3712343041 + 8953133641 = 60929^2 + 94621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216632 + ... + 268812.

Almost surely, 2^12665476682 is an apocalyptic number.

12665476682 is a deficient number, since it is larger than the sum of its proper divisors (6478846750).

12665476682 is a wasteful number, since it uses less digits than its factorization.

12665476682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53113.

The product of its digits is 5806080, while the sum is 53.

The spelling of 12665476682 in words is "twelve billion, six hundred sixty-five million, four hundred seventy-six thousand, six hundred eighty-two".