166793369 has 4 divisors (see below), whose sum is σ = 166929444. Its totient is φ = 166657296.

The previous prime is 166793353. The next prime is 166793377. The reversal of 166793369 is 963397661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963397661 = 29 ⋅33220609.

It can be written as a sum of positive squares in 2 ways, for example, as 91450969 + 75342400 = 9563^2 + 8680^2 .

It is a cyclic number.

It is not a de Polignac number, because 166793369 - 2⁴ = 166793353 is a prime.

It is a super-2 number, since 2×166793369² = 55640055884740322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166793329) 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, 66182 + ... + 68655.

It is an arithmetic number, because the mean of its divisors is an integer number (41732361).

Almost surely, 2^166793369 is an apocalyptic number.

It is an amenable number.

166793369 is a deficient number, since it is larger than the sum of its proper divisors (136075).

166793369 is a wasteful number, since it uses less digits than its factorization.

166793369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136074.

The product of its digits is 1102248, while the sum is 50.

The square root of 166793369 is about 12914.8507153587. The cubic root of 166793369 is about 550.4606267880.

The spelling of 166793369 in words is "one hundred sixty-six million, seven hundred ninety-three thousand, three hundred sixty-nine".