665162011425311 has 2 divisors, whose sum is σ = 665162011425312. Its totient is φ = 665162011425310.

The previous prime is 665162011425257. The next prime is 665162011425319. The reversal of 665162011425311 is 113524110261566.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-665162011425311 is a prime.

It is a super-2 number, since 2×665162011425311² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665162011425319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332581005712655 + 332581005712656.

It is an arithmetic number, because the mean of its divisors is an integer number (332581005712656).

Almost surely, 2^{665162011425311} is an apocalyptic number.

665162011425311 is a deficient number, since it is larger than the sum of its proper divisors (1).

665162011425311 is an equidigital number, since it uses as much as digits as its factorization.

665162011425311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

Adding to 665162011425311 its reverse (113524110261566), we get a palindrome (778686121686877).

The spelling of 665162011425311 in words is "six hundred sixty-five trillion, one hundred sixty-two billion, eleven million, four hundred twenty-five thousand, three hundred eleven".