113746788666 has 72 divisors (see below), whose sum is σ = 290726358624. Its totient is φ = 32041331280.

The previous prime is 113746788601. The next prime is 113746788703. The reversal of 113746788666 is 666887647311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 845580 + ... + 970823.

It is an arithmetic number, because the mean of its divisors is an integer number (4037866092).

Almost surely, 2^113746788666 is an apocalyptic number.

113746788666 is an abundant number, since it is smaller than the sum of its proper divisors (176979569958).

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

113746788666 is a wasteful number, since it uses less digits than its factorization.

113746788666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816496 (or 1816486 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 113746788666 in words is "one hundred thirteen billion, seven hundred forty-six million, seven hundred eighty-eight thousand, six hundred sixty-six".