166891341 has 8 divisors (see below), whose sum is σ = 222930784. Its totient is φ = 111056400.

The previous prime is 166891339. The next prime is 166891343. The reversal of 166891341 is 143198661.

It is an interprime number because it is at equal distance from previous prime (166891339) and next prime (166891343).

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

It is not a de Polignac number, because 166891341 - 2¹ = 166891339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166891341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166891343) 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, 49210 + ... + 52491.

It is an arithmetic number, because the mean of its divisors is an integer number (27866348).

Almost surely, 2^166891341 is an apocalyptic number.

It is an amenable number.

166891341 is a deficient number, since it is larger than the sum of its proper divisors (56039443).

166891341 is a wasteful number, since it uses less digits than its factorization.

166891341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102251.

The product of its digits is 31104, while the sum is 39.

The square root of 166891341 is about 12918.6431563071. The cubic root of 166891341 is about 550.5683832157.

The spelling of 166891341 in words is "one hundred sixty-six million, eight hundred ninety-one thousand, three hundred forty-one".