166293913 has 8 divisors (see below), whose sum is σ = 170045568. Its totient is φ = 162565104.

The previous prime is 166293899. The next prime is 166293923. The reversal of 166293913 is 319392661.

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

It is a cyclic number.

It is not a de Polignac number, because 166293913 - 2⁹ = 166293401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166293923) 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, 9456 + ... + 20542.

It is an arithmetic number, because the mean of its divisors is an integer number (21255696).

Almost surely, 2^166293913 is an apocalyptic number.

It is an amenable number.

166293913 is a deficient number, since it is larger than the sum of its proper divisors (3751655).

166293913 is a wasteful number, since it uses less digits than its factorization.

166293913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423.

The product of its digits is 52488, while the sum is 40.

The square root of 166293913 is about 12895.4997188942. The cubic root of 166293913 is about 549.9106334140.

The spelling of 166293913 in words is "one hundred sixty-six million, two hundred ninety-three thousand, nine hundred thirteen".