165260566303279 has 2 divisors, whose sum is σ = 165260566303280. Its totient is φ = 165260566303278.

The previous prime is 165260566303219. The next prime is 165260566303321. The reversal of 165260566303279 is 972303665062561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165260566303279 - 2¹³ = 165260566295087 is a prime.

It is a super-2 number, since 2×165260566303279² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165260566303219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82630283151639 + 82630283151640.

It is an arithmetic number, because the mean of its divisors is an integer number (82630283151640).

Almost surely, 2^{165260566303279} is an apocalyptic number.

165260566303279 is a deficient number, since it is larger than the sum of its proper divisors (1).

165260566303279 is an equidigital number, since it uses as much as digits as its factorization.

165260566303279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73483200, while the sum is 61.

The spelling of 165260566303279 in words is "one hundred sixty-five trillion, two hundred sixty billion, five hundred sixty-six million, three hundred three thousand, two hundred seventy-nine".