166838793 has 12 divisors (see below), whose sum is σ = 244513584. Its totient is φ = 101114200.

The previous prime is 166838783. The next prime is 166838801. The reversal of 166838793 is 397838661.

It is not a de Polignac number, because 166838793 - 2⁶ = 166838729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166838713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229443 + ... + 230168.

It is an arithmetic number, because the mean of its divisors is an integer number (20376132).

Almost surely, 2^166838793 is an apocalyptic number.

It is an amenable number.

166838793 is a deficient number, since it is larger than the sum of its proper divisors (77674791).

166838793 is a wasteful number, since it uses less digits than its factorization.

166838793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459636 (or 459625 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 166838793 is about 12916.6091912700. The cubic root of 166838793 is about 550.5105925114.

The spelling of 166838793 in words is "one hundred sixty-six million, eight hundred thirty-eight thousand, seven hundred ninety-three".