66324770 has 8 divisors (see below), whose sum is σ = 119384604. Its totient is φ = 26529904.

The previous prime is 66324749. The next prime is 66324773. The reversal of 66324770 is 7742366.

It can be written as a sum of positive squares in 2 ways, for example, as 63888049 + 2436721 = 7993^2 + 1561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66324770.

It is not an unprimeable number, because it can be changed into a prime (66324773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3316229 + ... + 3316248.

Almost surely, 2^66324770 is an apocalyptic number.

66324770 is a deficient number, since it is larger than the sum of its proper divisors (53059834).

66324770 is a wasteful number, since it uses less digits than its factorization.

66324770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632484.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 66324770 is about 8144.0020874261. The cubic root of 66324770 is about 404.7857831731.

The spelling of 66324770 in words is "sixty-six million, three hundred twenty-four thousand, seven hundred seventy".