36666645 has 16 divisors (see below), whose sum is σ = 60559872. Its totient is φ = 18924480.

The previous prime is 36666631. The next prime is 36666647. The reversal of 36666645 is 54666663.

It is a happy number.

It is not a de Polignac number, because 36666645 - 2⁷ = 36666517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36666597 and 36666606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36666647) 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, 38962 + ... + 39891.

It is an arithmetic number, because the mean of its divisors is an integer number (3784992).

Almost surely, 2^36666645 is an apocalyptic number.

It is an amenable number.

36666645 is a deficient number, since it is larger than the sum of its proper divisors (23893227).

36666645 is a wasteful number, since it uses less digits than its factorization.

36666645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78892.

The product of its digits is 466560, while the sum is 42.

The square root of 36666645 is about 6055.2989191286. The cubic root of 36666645 is about 332.2184323672.

The spelling of 36666645 in words is "thirty-six million, six hundred sixty-six thousand, six hundred forty-five".