166424441219 has 8 divisors (see below), whose sum is σ = 169304604720. Its totient is φ = 163546258176.

The previous prime is 166424441213. The next prime is 166424441257. The reversal of 166424441219 is 912144424661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166424441219 is a prime.

It is a super-2 number, since 2×166424441219² (a number of 23 digits) contains 22 as substring.

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 166424441219.

It is not an unprimeable number, because it can be changed into a prime (166424441213) 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, 325094 + ... + 662219.

It is an arithmetic number, because the mean of its divisors is an integer number (21163075590).

Almost surely, 2^166424441219 is an apocalyptic number.

166424441219 is a deficient number, since it is larger than the sum of its proper divisors (2880163501).

166424441219 is an equidigital number, since it uses as much as digits as its factorization.

166424441219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990229.

The product of its digits is 331776, while the sum is 44.

The spelling of 166424441219 in words is "one hundred sixty-six billion, four hundred twenty-four million, four hundred forty-one thousand, two hundred nineteen".