166906141 has 8 divisors (see below), whose sum is σ = 169682040. Its totient is φ = 164153088.

The previous prime is 166906133. The next prime is 166906151. The reversal of 166906141 is 141609661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77528025 + 89378116 = 8805^2 + 9454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166906141 - 2³ = 166906133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166906097 and 166906106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166906151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9345 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (21210255).

Almost surely, 2^166906141 is an apocalyptic number.

It is an amenable number.

166906141 is a deficient number, since it is larger than the sum of its proper divisors (2775899).

166906141 is a wasteful number, since it uses less digits than its factorization.

166906141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 166906141 is about 12919.2159591827. The cubic root of 166906141 is about 550.5846576195.

The spelling of 166906141 in words is "one hundred sixty-six million, nine hundred six thousand, one hundred forty-one".