166514101 has 4 divisors (see below), whose sum is σ = 179322892. Its totient is φ = 153705312.

The previous prime is 166514093. The next prime is 166514111. The reversal of 166514101 is 101415661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39050001 + 127464100 = 6249^2 + 11290^2 .

It is a cyclic number.

It is not a de Polignac number, because 166514101 - 2³ = 166514093 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 (166514111) 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, 6404376 + ... + 6404401.

It is an arithmetic number, because the mean of its divisors is an integer number (44830723).

Almost surely, 2^166514101 is an apocalyptic number.

It is an amenable number.

166514101 is a deficient number, since it is larger than the sum of its proper divisors (12808791).

166514101 is a wasteful number, since it uses less digits than its factorization.

166514101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12808790.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 166514101 is about 12904.0342916469. The cubic root of 166514101 is about 550.1532366413.

Adding to 166514101 its reverse (101415661), we get a palindrome (267929762).

The spelling of 166514101 in words is "one hundred sixty-six million, five hundred fourteen thousand, one hundred one".