117881274666 has 64 divisors (see below), whose sum is σ = 249202437120. Its totient is φ = 37071302400.

The previous prime is 117881274619. The next prime is 117881274677. The reversal of 117881274666 is 666472188711.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33232305 + ... + 33235851.

It is an arithmetic number, because the mean of its divisors is an integer number (3893788080).

Almost surely, 2^117881274666 is an apocalyptic number.

117881274666 is an abundant number, since it is smaller than the sum of its proper divisors (131321162454).

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

117881274666 is a wasteful number, since it uses less digits than its factorization.

117881274666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699.

The product of its digits is 5419008, while the sum is 57.

The spelling of 117881274666 in words is "one hundred seventeen billion, eight hundred eighty-one million, two hundred seventy-four thousand, six hundred sixty-six".