166994822 has 4 divisors (see below), whose sum is σ = 250492236. Its totient is φ = 83497410.

The previous prime is 166994809. The next prime is 166994831. The reversal of 166994822 is 228499661.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41748704 + ... + 41748707.

It is an arithmetic number, because the mean of its divisors is an integer number (62623059).

Almost surely, 2^166994822 is an apocalyptic number.

166994822 is a deficient number, since it is larger than the sum of its proper divisors (83497414).

166994822 is an equidigital number, since it uses as much as digits as its factorization.

166994822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83497413.

The product of its digits is 373248, while the sum is 47.

The square root of 166994822 is about 12922.6476389322. The cubic root of 166994822 is about 550.6821530397.

The spelling of 166994822 in words is "one hundred sixty-six million, nine hundred ninety-four thousand, eight hundred twenty-two".