66322983 has 4 divisors (see below), whose sum is σ = 88430648. Its totient is φ = 44215320.

The previous prime is 66322979. The next prime is 66322999. The reversal of 66322983 is 38922366.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66322983 - 2² = 66322979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66322943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11053828 + ... + 11053833.

It is an arithmetic number, because the mean of its divisors is an integer number (22107662).

Almost surely, 2^66322983 is an apocalyptic number.

66322983 is a deficient number, since it is larger than the sum of its proper divisors (22107665).

66322983 is a wasteful number, since it uses less digits than its factorization.

66322983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22107664.

The product of its digits is 93312, while the sum is 39.

The square root of 66322983 is about 8143.8923740433. The cubic root of 66322983 is about 404.7821477354.

The spelling of 66322983 in words is "sixty-six million, three hundred twenty-two thousand, nine hundred eighty-three".