165752785567 has 2 divisors, whose sum is σ = 165752785568. Its totient is φ = 165752785566.

The previous prime is 165752785559. The next prime is 165752785621. The reversal of 165752785567 is 765587257561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165752785567 - 2³ = 165752785559 is a prime.

It is a super-2 number, since 2×165752785567² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165752785499 and 165752785508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165752785507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82876392783 + 82876392784.

It is an arithmetic number, because the mean of its divisors is an integer number (82876392784).

Almost surely, 2^165752785567 is an apocalyptic number.

165752785567 is a deficient number, since it is larger than the sum of its proper divisors (1).

165752785567 is an equidigital number, since it uses as much as digits as its factorization.

165752785567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480000, while the sum is 64.

The spelling of 165752785567 in words is "one hundred sixty-five billion, seven hundred fifty-two million, seven hundred eighty-five thousand, five hundred sixty-seven".