166059101 has 4 divisors (see below), whose sum is σ = 178832892. Its totient is φ = 153285312.

The previous prime is 166059097. The next prime is 166059151. The reversal of 166059101 is 101950661.

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 19624900 + 146434201 = 4430^2 + 12101^2 .

It is a cyclic number.

It is not a de Polignac number, because 166059101 - 2² = 166059097 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 (166059151) 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, 6386876 + ... + 6386901.

It is an arithmetic number, because the mean of its divisors is an integer number (44708223).

Almost surely, 2^166059101 is an apocalyptic number.

It is an amenable number.

166059101 is a deficient number, since it is larger than the sum of its proper divisors (12773791).

166059101 is a wasteful number, since it uses less digits than its factorization.

166059101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12773790.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 166059101 is about 12886.3920862280. The cubic root of 166059101 is about 549.6516813825.

The spelling of 166059101 in words is "one hundred sixty-six million, fifty-nine thousand, one hundred one".