2665005073 has 2 divisors, whose sum is σ = 2665005074. Its totient is φ = 2665005072.

The previous prime is 2665005071. The next prime is 2665005169. The reversal of 2665005073 is 3705005662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1640493009 + 1024512064 = 40503^2 + 32008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665005073 - 2¹ = 2665005071 is a prime.

Together with 2665005071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2665005071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332502536 + 1332502537.

It is an arithmetic number, because the mean of its divisors is an integer number (1332502537).

Almost surely, 2^2665005073 is an apocalyptic number.

It is an amenable number.

2665005073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665005073 is an equidigital number, since it uses as much as digits as its factorization.

2665005073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 2665005073 is about 51623.6871310061. The cubic root of 2665005073 is about 1386.4344676832.

The spelling of 2665005073 in words is "two billion, six hundred sixty-five million, five thousand, seventy-three".