166339893 has 8 divisors (see below), whose sum is σ = 228941056. Its totient is φ = 107316000.

The previous prime is 166339879. The next prime is 166339897. The reversal of 166339893 is 398933661.

It is a happy number.

166339893 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 166339893 - 2⁵ = 166339861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166339897) 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, 894208 + ... + 894393.

It is an arithmetic number, because the mean of its divisors is an integer number (28617632).

Almost surely, 2^166339893 is an apocalyptic number.

It is an amenable number.

166339893 is a deficient number, since it is larger than the sum of its proper divisors (62601163).

166339893 is a wasteful number, since it uses less digits than its factorization.

166339893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788635.

The product of its digits is 629856, while the sum is 48.

The square root of 166339893 is about 12897.2823881622. The cubic root of 166339893 is about 549.9613118792.

The spelling of 166339893 in words is "one hundred sixty-six million, three hundred thirty-nine thousand, eight hundred ninety-three".