66059944 has 16 divisors (see below), whose sum is σ = 124326900. Its totient is φ = 32906112.

The previous prime is 66059921. The next prime is 66059969. The reversal of 66059944 is 44995066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50552100 + 15507844 = 7110^2 + 3938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66059944.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13197 + ... + 17500.

Almost surely, 2^66059944 is an apocalyptic number.

It is an amenable number.

66059944 is a deficient number, since it is larger than the sum of its proper divisors (58266956).

66059944 is a wasteful number, since it uses less digits than its factorization.

66059944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30972 (or 30968 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 66059944 is about 8127.7268654895. The cubic root of 66059944 is about 404.2463125616.

The spelling of 66059944 in words is "sixty-six million, fifty-nine thousand, nine hundred forty-four".