165220501622003 has 2 divisors, whose sum is σ = 165220501622004. Its totient is φ = 165220501622002.

The previous prime is 165220501621919. The next prime is 165220501622087. The reversal of 165220501622003 is 300226105022561.

It is a balanced prime because it is at equal distance from previous prime (165220501621919) and next prime (165220501622087).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165220501622003 is a prime.

It is not a weakly prime, because it can be changed into another prime (165220501642003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82610250811001 + 82610250811002.

It is an arithmetic number, because the mean of its divisors is an integer number (82610250811002).

Almost surely, 2^{165220501622003} is an apocalyptic number.

165220501622003 is a deficient number, since it is larger than the sum of its proper divisors (1).

165220501622003 is an equidigital number, since it uses as much as digits as its factorization.

165220501622003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 165220501622003 its reverse (300226105022561), we get a palindrome (465446606644564).

The spelling of 165220501622003 in words is "one hundred sixty-five trillion, two hundred twenty billion, five hundred one million, six hundred twenty-two thousand, three".