165590827 has 2 divisors, whose sum is σ = 165590828. Its totient is φ = 165590826.

The previous prime is 165590801. The next prime is 165590837. The reversal of 165590827 is 728095561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165590827 - 2⁷ = 165590699 is a prime.

It is not a weakly prime, because it can be changed into another prime (165590837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82795413 + 82795414.

It is an arithmetic number, because the mean of its divisors is an integer number (82795414).

Almost surely, 2^165590827 is an apocalyptic number.

165590827 is a deficient number, since it is larger than the sum of its proper divisors (1).

165590827 is an equidigital number, since it uses as much as digits as its factorization.

165590827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 165590827 is about 12868.2099376720. The cubic root of 165590827 is about 549.1345363672.

The spelling of 165590827 in words is "one hundred sixty-five million, five hundred ninety thousand, eight hundred twenty-seven".