165552017 has 2 divisors, whose sum is σ = 165552018. Its totient is φ = 165552016.

The previous prime is 165552007. The next prime is 165552031. The reversal of 165552017 is 710255561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106584976 + 58967041 = 10324^2 + 7679^2 .

It is a cyclic number.

It is not a de Polignac number, because 165552017 - 2¹⁶ = 165486481 is a prime.

It is a Chen prime.

It is equal to p_9268034 and since 165552017 and 9268034 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (165552007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82776008 + 82776009.

It is an arithmetic number, because the mean of its divisors is an integer number (82776009).

Almost surely, 2^165552017 is an apocalyptic number.

It is an amenable number.

165552017 is a deficient number, since it is larger than the sum of its proper divisors (1).

165552017 is an equidigital number, since it uses as much as digits as its factorization.

165552017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 165552017 is about 12866.7018695546. The cubic root of 165552017 is about 549.0916322665.

The spelling of 165552017 in words is "one hundred sixty-five million, five hundred fifty-two thousand, seventeen".