166186941 has 8 divisors (see below), whose sum is σ = 224072640. Its totient is φ = 109546272.

The previous prime is 166186919. The next prime is 166186957. The reversal of 166186941 is 149681661.

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

It is not a de Polignac number, because 166186941 - 2¹⁰ = 166185917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166186893 and 166186902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166186961) 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, 310945 + ... + 311478.

It is an arithmetic number, because the mean of its divisors is an integer number (28009080).

Almost surely, 2^166186941 is an apocalyptic number.

It is an amenable number.

166186941 is a deficient number, since it is larger than the sum of its proper divisors (57885699).

166186941 is an equidigital number, since it uses as much as digits as its factorization.

166186941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622515.

The product of its digits is 62208, while the sum is 42.

The square root of 166186941 is about 12891.3514031695. The cubic root of 166186941 is about 549.7926943241.

The spelling of 166186941 in words is "one hundred sixty-six million, one hundred eighty-six thousand, nine hundred forty-one".