66141844 has 12 divisors (see below), whose sum is σ = 116034100. Its totient is φ = 32989248.

The previous prime is 66141839. The next prime is 66141847. The reversal of 66141844 is 44814166.

It can be written as a sum of positive squares in 2 ways, for example, as 59444100 + 6697744 = 7710^2 + 2588^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66141847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18579 + ... + 21850.

Almost surely, 2^66141844 is an apocalyptic number.

It is an amenable number.

66141844 is a deficient number, since it is larger than the sum of its proper divisors (49892256).

66141844 is a wasteful number, since it uses less digits than its factorization.

66141844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40842 (or 40840 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 66141844 is about 8132.7636139261. The cubic root of 66141844 is about 404.4133028145.

The spelling of 66141844 in words is "sixty-six million, one hundred forty-one thousand, eight hundred forty-four".