82640667518607 has 32 divisors (see below), whose sum is σ = 125450043111936. Its totient is φ = 47900319667200.

The previous prime is 82640667518569. The next prime is 82640667518621. The reversal of 82640667518607 is 70681576604628.

It is not a de Polignac number, because 82640667518607 - 2⁶ = 82640667518543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82640667518677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3333994 + ... + 13281447.

It is an arithmetic number, because the mean of its divisors is an integer number (3920313847248).

Almost surely, 2^{82640667518607} is an apocalyptic number.

82640667518607 is a deficient number, since it is larger than the sum of its proper divisors (42809375593329).

82640667518607 is a wasteful number, since it uses less digits than its factorization.

82640667518607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16622031.

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 82640667518607 in words is "eighty-two trillion, six hundred forty billion, six hundred sixty-seven million, five hundred eighteen thousand, six hundred seven".