165170633 has 2 divisors, whose sum is σ = 165170634. Its totient is φ = 165170632.

The previous prime is 165170609. The next prime is 165170641. The reversal of 165170633 is 336071561.

165170633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86174089 + 78996544 = 9283^2 + 8888^2 .

It is a cyclic number.

It is not a de Polignac number, because 165170633 - 2¹⁸ = 164908489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165170633.

It is not a weakly prime, because it can be changed into another prime (165170683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82585316 + 82585317.

It is an arithmetic number, because the mean of its divisors is an integer number (82585317).

Almost surely, 2^165170633 is an apocalyptic number.

It is an amenable number.

165170633 is a deficient number, since it is larger than the sum of its proper divisors (1).

165170633 is an equidigital number, since it uses as much as digits as its factorization.

165170633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 165170633 is about 12851.8727429118. The cubic root of 165170633 is about 548.6696585904.

The spelling of 165170633 in words is "one hundred sixty-five million, one hundred seventy thousand, six hundred thirty-three".