166793377 has 2 divisors, whose sum is σ = 166793378. Its totient is φ = 166793376.

The previous prime is 166793353. The next prime is 166793437. The reversal of 166793377 is 773397661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165791376 + 1002001 = 12876^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 166793377 - 2²³ = 158404769 is a prime.

It is a super-2 number, since 2×166793377² = 55640061222128258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166793377.

It is not a weakly prime, because it can be changed into another prime (166793317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83396688 + 83396689.

It is an arithmetic number, because the mean of its divisors is an integer number (83396689).

Almost surely, 2^166793377 is an apocalyptic number.

It is an amenable number.

166793377 is a deficient number, since it is larger than the sum of its proper divisors (1).

166793377 is an equidigital number, since it uses as much as digits as its factorization.

166793377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1000188, while the sum is 49.

The square root of 166793377 is about 12914.8510250796. The cubic root of 166793377 is about 550.4606355887.

The spelling of 166793377 in words is "one hundred sixty-six million, seven hundred ninety-three thousand, three hundred seventy-seven".