66044488 has 8 divisors (see below), whose sum is σ = 123833430. Its totient is φ = 33022240.

The previous prime is 66044483. The next prime is 66044501. The reversal of 66044488 is 88444066.

It can be written as a sum of positive squares in only one way, i.e., 60559524 + 5484964 = 7782^2 + 2342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 66044488.

It is not an unprimeable number, because it can be changed into a prime (66044483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127773 + ... + 4127788.

Almost surely, 2^66044488 is an apocalyptic number.

It is an amenable number.

66044488 is a deficient number, since it is larger than the sum of its proper divisors (57788942).

66044488 is a wasteful number, since it uses less digits than its factorization.

66044488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255567 (or 8255563 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 66044488 is about 8126.7759905143. The cubic root of 66044488 is about 404.2147830246.

The spelling of 66044488 in words is "sixty-six million, forty-four thousand, four hundred eighty-eight".