36651585666 has 8 divisors (see below), whose sum is σ = 73303171344. Its totient is φ = 12217195220.

The previous prime is 36651585661. The next prime is 36651585679. The reversal of 36651585666 is 66658515663.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

36651585666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (36651585661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3054298800 + ... + 3054298811.

It is an arithmetic number, because the mean of its divisors is an integer number (9162896418).

Almost surely, 2^36651585666 is an apocalyptic number.

36651585666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

36651585666 is a wasteful number, since it uses less digits than its factorization.

36651585666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108597616.

The product of its digits is 23328000, while the sum is 57.

The spelling of 36651585666 in words is "thirty-six billion, six hundred fifty-one million, five hundred eighty-five thousand, six hundred sixty-six".