166005433 has 8 divisors (see below), whose sum is σ = 185514336. Its totient is φ = 147232800.

The previous prime is 166005419. The next prime is 166005439. The reversal of 166005433 is 334500661.

166005433 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 166005433 - 2²⁵ = 132451001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166005439) 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, 183591 + ... + 184492.

It is an arithmetic number, because the mean of its divisors is an integer number (23189292).

Almost surely, 2^166005433 is an apocalyptic number.

It is an amenable number.

166005433 is a deficient number, since it is larger than the sum of its proper divisors (19508903).

166005433 is a wasteful number, since it uses less digits than its factorization.

166005433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368135.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 166005433 is about 12884.3095662903. The cubic root of 166005433 is about 549.5924617338.

The spelling of 166005433 in words is "one hundred sixty-six million, five thousand, four hundred thirty-three".