166765122 has 32 divisors (see below), whose sum is σ = 379632960. Its totient is φ = 54231840.

The previous prime is 166765103. The next prime is 166765139. The reversal of 166765122 is 221567661.

It is a happy number.

166765122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35448 + ... + 39875.

It is an arithmetic number, because the mean of its divisors is an integer number (11863530).

Almost surely, 2^166765122 is an apocalyptic number.

166765122 is an abundant number, since it is smaller than the sum of its proper divisors (212867838).

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

166765122 is a wasteful number, since it uses less digits than its factorization.

166765122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75375 (or 75369 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 166765122 is about 12913.7570830491. The cubic root of 166765122 is about 550.4295509340.

The spelling of 166765122 in words is "one hundred sixty-six million, seven hundred sixty-five thousand, one hundred twenty-two".