113205607866 has 48 divisors (see below), whose sum is σ = 264665648520. Its totient is φ = 34764024960.

The previous prime is 113205607859. The next prime is 113205607871. The reversal of 113205607866 is 668706502311.

113205607866 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 0 + 560 + 7 + 86 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 106131956841 + 7073651025 = 325779^2 + 84105^2 .

It is a super-3 number, since 3×113205607866³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356125 + ... + 594336.

Almost surely, 2^113205607866 is an apocalyptic number.

113205607866 is an abundant number, since it is smaller than the sum of its proper divisors (151460040654).

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

113205607866 is a wasteful number, since it uses less digits than its factorization.

113205607866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950991 (or 950988 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 113205607866 in words is "one hundred thirteen billion, two hundred five million, six hundred seven thousand, eight hundred sixty-six".