165933337 has 2 divisors, whose sum is σ = 165933338. Its totient is φ = 165933336.

The previous prime is 165933283. The next prime is 165933347. The reversal of 165933337 is 733339561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163942416 + 1990921 = 12804^2 + 1411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165933337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165933337.

It is not a weakly prime, because it can be changed into another prime (165933347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82966668 + 82966669.

It is an arithmetic number, because the mean of its divisors is an integer number (82966669).

Almost surely, 2^165933337 is an apocalyptic number.

It is an amenable number.

165933337 is a deficient number, since it is larger than the sum of its proper divisors (1).

165933337 is an equidigital number, since it uses as much as digits as its factorization.

165933337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 40.

The square root of 165933337 is about 12881.5114408209. The cubic root of 165933337 is about 549.5128877204.

The spelling of 165933337 in words is "one hundred sixty-five million, nine hundred thirty-three thousand, three hundred thirty-seven".