166514737 has 2 divisors, whose sum is σ = 166514738. Its totient is φ = 166514736.

The previous prime is 166514729. The next prime is 166514741. The reversal of 166514737 is 737415661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166513216 + 1521 = 12904^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 166514737 - 2³ = 166514729 is a prime.

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 166514737.

It is not a weakly prime, because it can be changed into another prime (166514767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83257368 + 83257369.

It is an arithmetic number, because the mean of its divisors is an integer number (83257369).

Almost surely, 2^166514737 is an apocalyptic number.

It is an amenable number.

166514737 is a deficient number, since it is larger than the sum of its proper divisors (1).

166514737 is an equidigital number, since it uses as much as digits as its factorization.

166514737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 166514737 is about 12904.0589350793. The cubic root of 166514737 is about 550.1539370765.

The spelling of 166514737 in words is "one hundred sixty-six million, five hundred fourteen thousand, seven hundred thirty-seven".