165600101669 has 2 divisors, whose sum is σ = 165600101670. Its totient is φ = 165600101668.

The previous prime is 165600101609. The next prime is 165600101717. The reversal of 165600101669 is 966101006561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132887953444 + 32712148225 = 364538^2 + 180865^2 .

It is a cyclic number.

It is not a de Polignac number, because 165600101669 - 2⁸ = 165600101413 is a prime.

It is a super-2 number, since 2×165600101669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165600101609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82800050834 + 82800050835.

It is an arithmetic number, because the mean of its divisors is an integer number (82800050835).

Almost surely, 2^165600101669 is an apocalyptic number.

It is an amenable number.

165600101669 is a deficient number, since it is larger than the sum of its proper divisors (1).

165600101669 is an equidigital number, since it uses as much as digits as its factorization.

165600101669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 165600101669 in words is "one hundred sixty-five billion, six hundred million, one hundred one thousand, six hundred sixty-nine".