166443822 has 32 divisors (see below), whose sum is σ = 374451360. Its totient is φ = 55479816.

The previous prime is 166443811. The next prime is 166443829. The reversal of 166443822 is 228344661.

166443822 is a `hidden beast` number, since 1 + 6 + 644 + 3 + 8 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166443829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14653 + ... + 23400.

It is an arithmetic number, because the mean of its divisors is an integer number (11701605).

Almost surely, 2^166443822 is an apocalyptic number.

166443822 is an abundant number, since it is smaller than the sum of its proper divisors (208007538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166443822 is an frugal number, since it uses more digits than its factorization.

166443822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38076 (or 38058 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 166443822 is about 12901.3108636293. The cubic root of 166443822 is about 550.0758264602.

The spelling of 166443822 in words is "one hundred sixty-six million, four hundred forty-three thousand, eight hundred twenty-two".