66922 has 4 divisors (see below), whose sum is σ = 100386. Its totient is φ = 33460.

The previous prime is 66919. The next prime is 66923. The reversal of 66922 is 22966.

66922 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22966 = 2 ⋅11483.

It can be written as a sum of positive squares in only one way, i.e., 57121 + 9801 = 239^2 + 99^2 .

It is not an unprimeable number, because it can be changed into a prime (66923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16729 + ... + 16732.

2⁶⁶⁹²² is an apocalyptic number.

66922 is a deficient number, since it is larger than the sum of its proper divisors (33464).

66922 is a wasteful number, since it uses less digits than its factorization.

66922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33463.

The product of its digits is 1296, while the sum is 25.

The square root of 66922 is about 258.6928680888. The cubic root of 66922 is about 40.5997136528.

Subtracting from 66922 its reverse (22966), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 66922 in words is "sixty-six thousand, nine hundred twenty-two".