66324116 has 6 divisors (see below), whose sum is σ = 116067210. Its totient is φ = 33162056.

The previous prime is 66324067. The next prime is 66324119. The reversal of 66324116 is 61142366.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66259600 + 64516 = 8140^2 + 254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66324119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8290511 + ... + 8290518.

It is an arithmetic number, because the mean of its divisors is an integer number (19344535).

Almost surely, 2^66324116 is an apocalyptic number.

It is an amenable number.

66324116 is a deficient number, since it is larger than the sum of its proper divisors (49743094).

66324116 is a wasteful number, since it uses less digits than its factorization.

66324116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16581033 (or 16581031 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 66324116 is about 8143.9619350780. The cubic root of 66324116 is about 404.7844526959.

The spelling of 66324116 in words is "sixty-six million, three hundred twenty-four thousand, one hundred sixteen".