66836044 has 36 divisors (see below), whose sum is σ = 136141992. Its totient is φ = 28589440.

The previous prime is 66836041. The next prime is 66836071. The reversal of 66836044 is 44063866.

It is a junction number, because it is equal to n+sod(n) for n = 66835994 and 66836012.

It is not an unprimeable number, because it can be changed into a prime (66836041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4167 + ... + 12289.

It is an arithmetic number, because the mean of its divisors is an integer number (3781722).

Almost surely, 2^66836044 is an apocalyptic number.

It is an amenable number.

66836044 is an abundant number, since it is smaller than the sum of its proper divisors (69305948).

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

66836044 is a wasteful number, since it uses less digits than its factorization.

66836044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166 (or 8153 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 66836044 is about 8175.3314305904. The cubic root of 66836044 is about 405.8232383490.

The spelling of 66836044 in words is "sixty-six million, eight hundred thirty-six thousand, forty-four".