66343263 has 8 divisors (see below), whose sum is σ = 101094528. Its totient is φ = 37910424.

The previous prime is 66343261. The next prime is 66343283. The reversal of 66343263 is 36234366.

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

It is not a de Polignac number, because 66343263 - 2¹ = 66343261 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66343261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579581 + ... + 1579622.

It is an arithmetic number, because the mean of its divisors is an integer number (12636816).

Almost surely, 2^66343263 is an apocalyptic number.

66343263 is a deficient number, since it is larger than the sum of its proper divisors (34751265).

66343263 is a wasteful number, since it uses less digits than its factorization.

66343263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159213.

The product of its digits is 46656, while the sum is 33.

The square root of 66343263 is about 8145.1373837401. The cubic root of 66343263 is about 404.8234011342.

The spelling of 66343263 in words is "sixty-six million, three hundred forty-three thousand, two hundred sixty-three".