36616680666 has 40 divisors (see below), whose sum is σ = 84266028660. Its totient is φ = 11875678272.

The previous prime is 36616680637. The next prime is 36616680671. The reversal of 36616680666 is 66608661663.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34603812441 + 2012868225 = 186021^2 + 44865^2 .

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 19 ways as a sum of consecutive naturals, for example, 3048451 + ... + 3060438.

Almost surely, 2^36616680666 is an apocalyptic number.

36616680666 is an abundant number, since it is smaller than the sum of its proper divisors (47649347994).

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

36616680666 is a wasteful number, since it uses less digits than its factorization.

36616680666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108940 (or 6108931 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 36616680666 in words is "thirty-six billion, six hundred sixteen million, six hundred eighty thousand, six hundred sixty-six".