36660666 has 32 divisors (see below), whose sum is σ = 87441408. Its totient is φ = 10018800.

The previous prime is 36660649. The next prime is 36660667. The reversal of 36660666 is 66606663.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36660667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18010 + ... + 19941.

It is an arithmetic number, because the mean of its divisors is an integer number (2732544).

Almost surely, 2^36660666 is an apocalyptic number.

36660666 is an abundant number, since it is smaller than the sum of its proper divisors (50780742).

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

36660666 is a wasteful number, since it uses less digits than its factorization.

36660666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37986.

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 36660666 is about 6054.8051991786. The cubic root of 36660666 is about 332.2003737931.

The spelling of 36660666 in words is "thirty-six million, six hundred sixty thousand, six hundred sixty-six".