166610461 has 8 divisors (see below), whose sum is σ = 172339200. Its totient is φ = 160903920.

The previous prime is 166610443. The next prime is 166610467. The reversal of 166610461 is 164016661.

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 166610461 - 2⁷ = 166610333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166610467) 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, 10500 + ... + 21058.

It is an arithmetic number, because the mean of its divisors is an integer number (21542400).

Almost surely, 2^166610461 is an apocalyptic number.

It is an amenable number.

166610461 is a deficient number, since it is larger than the sum of its proper divisors (5728739).

166610461 is a wasteful number, since it uses less digits than its factorization.

166610461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 166610461 is about 12907.7674676917. The cubic root of 166610461 is about 550.2593388530.

The spelling of 166610461 in words is "one hundred sixty-six million, six hundred ten thousand, four hundred sixty-one".