66041204 has 24 divisors (see below), whose sum is σ = 119387520. Its totient is φ = 31946816.

The previous prime is 66041203. The next prime is 66041219. The reversal of 66041204 is 40214066.

It is a happy number.

It is a super-2 number, since 2×66041204² = 8722881251539232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66041204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66041203) 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, 14759 + ... + 18705.

It is an arithmetic number, because the mean of its divisors is an integer number (4974480).

Almost surely, 2^66041204 is an apocalyptic number.

It is an amenable number.

66041204 is a deficient number, since it is larger than the sum of its proper divisors (53346316).

66041204 is a wasteful number, since it uses less digits than its factorization.

66041204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 66041204 is about 8126.5739398593. The cubic root of 66041204 is about 404.2080831803.

The spelling of 66041204 in words is "sixty-six million, forty-one thousand, two hundred four".