165603413263 has 2 divisors, whose sum is σ = 165603413264. Its totient is φ = 165603413262.

The previous prime is 165603413243. The next prime is 165603413291. The reversal of 165603413263 is 362314306561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165603413263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165603413243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82801706631 + 82801706632.

It is an arithmetic number, because the mean of its divisors is an integer number (82801706632).

Almost surely, 2^165603413263 is an apocalyptic number.

165603413263 is a deficient number, since it is larger than the sum of its proper divisors (1).

165603413263 is an equidigital number, since it uses as much as digits as its factorization.

165603413263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 165603413263 in words is "one hundred sixty-five billion, six hundred three million, four hundred thirteen thousand, two hundred sixty-three".