166841437 has 8 divisors (see below), whose sum is σ = 197251200. Its totient is φ = 138075504.

The previous prime is 166841431. The next prime is 166841453. The reversal of 166841437 is 734148661.

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

It is not a de Polignac number, because 166841437 - 2³ = 166841429 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 166841437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166841431) 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, 410737 + ... + 411142.

It is an arithmetic number, because the mean of its divisors is an integer number (24656400).

Almost surely, 2^166841437 is an apocalyptic number.

It is an amenable number.

166841437 is a deficient number, since it is larger than the sum of its proper divisors (30409763).

166841437 is an equidigital number, since it uses as much as digits as its factorization.

166841437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821915.

The product of its digits is 96768, while the sum is 40.

The square root of 166841437 is about 12916.7115397070. The cubic root of 166841437 is about 550.5135005927.

The spelling of 166841437 in words is "one hundred sixty-six million, eight hundred forty-one thousand, four hundred thirty-seven".