12105959616 has 84 divisors (see below), whose sum is σ = 34715577000. Its totient is φ = 4033456128.

The previous prime is 12105959527. The next prime is 12105959629. The reversal of 12105959616 is 61695950121.

It is a happy number.

12105959616 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 59 + 596 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1873960 + ... + 1880408.

Almost surely, 2^12105959616 is an apocalyptic number.

12105959616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12105959616 is an abundant number, since it is smaller than the sum of its proper divisors (22609617384).

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

12105959616 is a wasteful number, since it uses less digits than its factorization.

12105959616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726 (or 9713 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 12105959616 in words is "twelve billion, one hundred five million, nine hundred fifty-nine thousand, six hundred sixteen".