166692997 has 2 divisors, whose sum is σ = 166692998. Its totient is φ = 166692996.

The previous prime is 166692991. The next prime is 166693013. The reversal of 166692997 is 799296661.

166692997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146676321 + 20016676 = 12111^2 + 4474^2 .

It is a cyclic number.

It is not a de Polignac number, because 166692997 - 2²⁷ = 32475269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166692991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83346498 + 83346499.

It is an arithmetic number, because the mean of its divisors is an integer number (83346499).

Almost surely, 2^166692997 is an apocalyptic number.

It is an amenable number.

166692997 is a deficient number, since it is larger than the sum of its proper divisors (1).

166692997 is an equidigital number, since it uses as much as digits as its factorization.

166692997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 55.

The square root of 166692997 is about 12910.9642165099. The cubic root of 166692997 is about 550.3501869048.

The spelling of 166692997 in words is "one hundred sixty-six million, six hundred ninety-two thousand, nine hundred ninety-seven".