166433601 has 4 divisors (see below), whose sum is σ = 221911472. Its totient is φ = 110955732.

The previous prime is 166433599. The next prime is 166433609. The reversal of 166433601 is 106334661.

166433601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 166433601 - 2¹ = 166433599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166433609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27738931 + ... + 27738936.

It is an arithmetic number, because the mean of its divisors is an integer number (55477868).

Almost surely, 2^166433601 is an apocalyptic number.

It is an amenable number.

166433601 is a deficient number, since it is larger than the sum of its proper divisors (55477871).

166433601 is an equidigital number, since it uses as much as digits as its factorization.

166433601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55477870.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 166433601 is about 12900.9147350101. The cubic root of 166433601 is about 550.0645665247.

The spelling of 166433601 in words is "one hundred sixty-six million, four hundred thirty-three thousand, six hundred one".