165852476563 has 2 divisors, whose sum is σ = 165852476564. Its totient is φ = 165852476562.

The previous prime is 165852476549. The next prime is 165852476591. The reversal of 165852476563 is 365674258561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165852476563 - 2²¹ = 165850379411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165852476498 and 165852476507.

It is not a weakly prime, because it can be changed into another prime (165852476513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82926238281 + 82926238282.

It is an arithmetic number, because the mean of its divisors is an integer number (82926238282).

Almost surely, 2^165852476563 is an apocalyptic number.

165852476563 is a deficient number, since it is larger than the sum of its proper divisors (1).

165852476563 is an equidigital number, since it uses as much as digits as its factorization.

165852476563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 58.

The spelling of 165852476563 in words is "one hundred sixty-five billion, eight hundred fifty-two million, four hundred seventy-six thousand, five hundred sixty-three".