166634113 has 4 divisors (see below), whose sum is σ = 169458480. Its totient is φ = 163809748.

The previous prime is 166634071. The next prime is 166634137. The reversal of 166634113 is 311436661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166634113 - 2⁹ = 166633601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166634183) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1412095 + ... + 1412212.

It is an arithmetic number, because the mean of its divisors is an integer number (42364620).

Almost surely, 2^166634113 is an apocalyptic number.

It is an amenable number.

166634113 is a deficient number, since it is larger than the sum of its proper divisors (2824367).

166634113 is an equidigital number, since it uses as much as digits as its factorization.

166634113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824366.

The product of its digits is 7776, while the sum is 31.

The square root of 166634113 is about 12908.6836276981. The cubic root of 166634113 is about 550.2853758697.

The spelling of 166634113 in words is "one hundred sixty-six million, six hundred thirty-four thousand, one hundred thirteen".