165503363 has 2 divisors, whose sum is σ = 165503364. Its totient is φ = 165503362.

The previous prime is 165503353. The next prime is 165503369. The reversal of 165503363 is 363305561.

165503363 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 is a cyclic number.

It is not a de Polignac number, because 165503363 - 2¹⁰ = 165502339 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (165503369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82751681 + 82751682.

It is an arithmetic number, because the mean of its divisors is an integer number (82751682).

Almost surely, 2^165503363 is an apocalyptic number.

165503363 is a deficient number, since it is larger than the sum of its proper divisors (1).

165503363 is an equidigital number, since it uses as much as digits as its factorization.

165503363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 165503363 is about 12864.8110363114. The cubic root of 165503363 is about 549.0378362405.

The spelling of 165503363 in words is "one hundred sixty-five million, five hundred three thousand, three hundred sixty-three".