165486883777 has 2 divisors, whose sum is σ = 165486883778. Its totient is φ = 165486883776.

The previous prime is 165486883747. The next prime is 165486883787. The reversal of 165486883777 is 777388684561.

165486883777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113111815041 + 52375068736 = 336321^2 + 228856^2 .

It is an emirp because it is prime and its reverse (777388684561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165486883777 - 2³¹ = 163339400129 is a prime.

It is not a weakly prime, because it can be changed into another prime (165486883717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82743441888 + 82743441889.

It is an arithmetic number, because the mean of its divisors is an integer number (82743441889).

Almost surely, 2^165486883777 is an apocalyptic number.

It is an amenable number.

165486883777 is a deficient number, since it is larger than the sum of its proper divisors (1).

165486883777 is an equidigital number, since it uses as much as digits as its factorization.

165486883777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 379330560, while the sum is 70.

The spelling of 165486883777 in words is "one hundred sixty-five billion, four hundred eighty-six million, eight hundred eighty-three thousand, seven hundred seventy-seven".