166347443 has 8 divisors (see below), whose sum is σ = 171075888. Its totient is φ = 161677984.

The previous prime is 166347421. The next prime is 166347463. The reversal of 166347443 is 344743661.

It is a happy number.

166347443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 166347443 - 2¹⁴ = 166331059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166347397 and 166347406.

It is not an unprimeable number, because it can be changed into a prime (166347463) 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, 8996 + ... + 20337.

It is an arithmetic number, because the mean of its divisors is an integer number (21384486).

Almost surely, 2^166347443 is an apocalyptic number.

166347443 is a deficient number, since it is larger than the sum of its proper divisors (4728445).

166347443 is a wasteful number, since it uses less digits than its factorization.

166347443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29493.

The product of its digits is 145152, while the sum is 38.

The square root of 166347443 is about 12897.5750821618. The cubic root of 166347443 is about 549.9696324831.

The spelling of 166347443 in words is "one hundred sixty-six million, three hundred forty-seven thousand, four hundred forty-three".