82665438768007 has 2 divisors, whose sum is σ = 82665438768008. Its totient is φ = 82665438768006.

The previous prime is 82665438767861. The next prime is 82665438768049. The reversal of 82665438768007 is 70086783456628.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82665438768007 - 2¹⁹ = 82665438243719 is a prime.

It is a super-2 number, since 2×82665438768007² (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 (82665438768097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41332719384003 + 41332719384004.

It is an arithmetic number, because the mean of its divisors is an integer number (41332719384004).

Almost surely, 2^{82665438768007} is an apocalyptic number.

82665438768007 is a deficient number, since it is larger than the sum of its proper divisors (1).

82665438768007 is an equidigital number, since it uses as much as digits as its factorization.

82665438768007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 650280960, while the sum is 70.

The spelling of 82665438768007 in words is "eighty-two trillion, six hundred sixty-five billion, four hundred thirty-eight million, seven hundred sixty-eight thousand, seven".