36634446666 has 32 divisors (see below), whose sum is σ = 81416566080. Its totient is φ = 12210479568.

The previous prime is 36634446647. The next prime is 36634446683. The reversal of 36634446666 is 66664443663.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 952440 + ... + 990156.

It is an arithmetic number, because the mean of its divisors is an integer number (2544267690).

Almost surely, 2^36634446666 is an apocalyptic number.

36634446666 is an abundant number, since it is smaller than the sum of its proper divisors (44782119414).

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

36634446666 is a wasteful number, since it uses less digits than its factorization.

36634446666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55715 (or 55709 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 54.

The spelling of 36634446666 in words is "thirty-six billion, six hundred thirty-four million, four hundred forty-six thousand, six hundred sixty-six".