66844052 has 48 divisors (see below), whose sum is σ = 138022080. Its totient is φ = 27993600.

The previous prime is 66844021. The next prime is 66844067. The reversal of 66844052 is 25044866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29852 + ... + 32012.

It is an arithmetic number, because the mean of its divisors is an integer number (2875460).

Almost surely, 2^66844052 is an apocalyptic number.

It is an amenable number.

66844052 is an abundant number, since it is smaller than the sum of its proper divisors (71178028).

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

66844052 is a wasteful number, since it uses less digits than its factorization.

66844052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 66844052 is about 8175.8211819976. The cubic root of 66844052 is about 405.8394456852.

The spelling of 66844052 in words is "sixty-six million, eight hundred forty-four thousand, fifty-two".