166960867 has 2 divisors, whose sum is σ = 166960868. Its totient is φ = 166960866.

The previous prime is 166960853. The next prime is 166960877. The reversal of 166960867 is 768069661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166960867 is a prime.

It is a super-2 number, since 2×166960867² = 55751862218783378, 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 166960867.

It is not a weakly prime, because it can be changed into another prime (166960877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83480433 + 83480434.

It is an arithmetic number, because the mean of its divisors is an integer number (83480434).

Almost surely, 2^166960867 is an apocalyptic number.

166960867 is a deficient number, since it is larger than the sum of its proper divisors (1).

166960867 is an equidigital number, since it uses as much as digits as its factorization.

166960867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 166960867 is about 12921.3337933822. Note that the first 3 decimals coincide. The cubic root of 166960867 is about 550.6448271718.

The spelling of 166960867 in words is "one hundred sixty-six million, nine hundred sixty thousand, eight hundred sixty-seven".