166122703 has 4 divisors (see below), whose sum is σ = 168846088. Its totient is φ = 163399320.

The previous prime is 166122689. The next prime is 166122713. The reversal of 166122703 is 307221661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 307221661 = 311 ⋅987851.

It is a cyclic number.

It is not a de Polignac number, because 166122703 - 2⁹ = 166122191 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 (166122713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361601 + ... + 1361722.

It is an arithmetic number, because the mean of its divisors is an integer number (42211522).

Almost surely, 2^166122703 is an apocalyptic number.

166122703 is a deficient number, since it is larger than the sum of its proper divisors (2723385).

166122703 is an equidigital number, since it uses as much as digits as its factorization.

166122703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723384.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 166122703 is about 12888.8596469975. The cubic root of 166122703 is about 549.7218461286.

The spelling of 166122703 in words is "one hundred sixty-six million, one hundred twenty-two thousand, seven hundred three".