66357316 has 9 divisors (see below), whose sum is σ = 116153821. Its totient is φ = 33170512.

The previous prime is 66357301. The next prime is 66357337. The reversal of 66357316 is 61375366.

The square root of 66357316 is 8146.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 59228416 = 2670^2 + 7696^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 14256 + ... + 18328.

Almost surely, 2^66357316 is an apocalyptic number.

66357316 is the 8146-th square number.

It is an amenable number.

66357316 is a deficient number, since it is larger than the sum of its proper divisors (49796505).

66357316 is an frugal number, since it uses more digits than its factorization.

66357316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150 (or 4075 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The cubic root of 66357316 is about 404.8519826930.

The spelling of 66357316 in words is "sixty-six million, three hundred fifty-seven thousand, three hundred sixteen".