66044812 has 6 divisors (see below), whose sum is σ = 115578428. Its totient is φ = 33022404.

The previous prime is 66044807. The next prime is 66044827. The reversal of 66044812 is 21844066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8255598 + ... + 8255605.

Almost surely, 2^66044812 is an apocalyptic number.

It is an amenable number.

66044812 is a deficient number, since it is larger than the sum of its proper divisors (49533616).

66044812 is a wasteful number, since it uses less digits than its factorization.

66044812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511207 (or 16511205 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 66044812 is about 8126.7959245941. The cubic root of 66044812 is about 404.2154440203.

Adding to 66044812 its reverse (21844066), we get a palindrome (87888878).

The spelling of 66044812 in words is "sixty-six million, forty-four thousand, eight hundred twelve".