12116606405 has 16 divisors (see below), whose sum is σ = 14767628400. Its totient is φ = 9542438400.

The previous prime is 12116606399. The next prime is 12116606423. The reversal of 12116606405 is 50460661121.

It can be written as a sum of positive squares in 8 ways, for example, as 16826404 + 12099780001 = 4102^2 + 109999^2 .

It is not a de Polignac number, because 12116606405 - 2⁴ = 12116606389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42455 + ... + 161355.

It is an arithmetic number, because the mean of its divisors is an integer number (922976775).

Almost surely, 2^12116606405 is an apocalyptic number.

It is an amenable number.

12116606405 is a deficient number, since it is larger than the sum of its proper divisors (2651021995).

12116606405 is a wasteful number, since it uses less digits than its factorization.

12116606405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119224.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 12116606405 in words is "twelve billion, one hundred sixteen million, six hundred six thousand, four hundred five".