36666664 has 8 divisors (see below), whose sum is σ = 68750010. Its totient is φ = 18333328.

The previous prime is 36666649. The next prime is 36666683. The reversal of 36666664 is 46666663.

It can be written as a sum of positive squares in only one way, i.e., 32832900 + 3833764 = 5730^2 + 1958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 36666664.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2291659 + ... + 2291674.

Almost surely, 2^36666664 is an apocalyptic number.

It is an amenable number.

36666664 is a deficient number, since it is larger than the sum of its proper divisors (32083346).

36666664 is a wasteful number, since it uses less digits than its factorization.

36666664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583339 (or 4583335 counting only the distinct ones).

The product of its digits is 559872, while the sum is 43.

The square root of 36666664 is about 6055.3004880022. The cubic root of 36666664 is about 332.2184897504.

Subtracting 36666664 from its reverse (46666663), we obtain a palindrome (9999999).

The spelling of 36666664 in words is "thirty-six million, six hundred sixty-six thousand, six hundred sixty-four".