36666644 has 24 divisors (see below), whose sum is σ = 73476480. Its totient is φ = 15683616.

The previous prime is 36666631. The next prime is 36666647. The reversal of 36666644 is 44666663.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 36 and 666644 contains 36666644 itself.

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 7 ways as a sum of consecutive naturals, for example, 18929 + ... + 20775.

It is an arithmetic number, because the mean of its divisors is an integer number (3061520).

Almost surely, 2^36666644 is an apocalyptic number.

It is an amenable number.

36666644 is an abundant number, since it is smaller than the sum of its proper divisors (36809836).

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

36666644 is a wasteful number, since it uses less digits than its factorization.

36666644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567 (or 2565 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

The square root of 36666644 is about 6055.2988365563. The cubic root of 36666644 is about 332.2184293470.

The spelling of 36666644 in words is "thirty-six million, six hundred sixty-six thousand, six hundred forty-four".