66264146 has 8 divisors (see below), whose sum is σ = 107042124. Its totient is φ = 30583440.

The previous prime is 66264131. The next prime is 66264169. The reversal of 66264146 is 64146266.

It can be written as a sum of positive squares in 2 ways, for example, as 64176121 + 2088025 = 8011^2 + 1445^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274285 + ... + 1274336.

Almost surely, 2^66264146 is an apocalyptic number.

66264146 is a deficient number, since it is larger than the sum of its proper divisors (40777978).

66264146 is a wasteful number, since it uses less digits than its factorization.

66264146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548636.

The product of its digits is 41472, while the sum is 35.

The square root of 66264146 is about 8140.2792335398. The cubic root of 66264146 is about 404.6624144128.

The spelling of 66264146 in words is "sixty-six million, two hundred sixty-four thousand, one hundred forty-six".