82660248865 has 16 divisors (see below), whose sum is σ = 99906624000. Its totient is φ = 65653422912.

The previous prime is 82660248829. The next prime is 82660248893. The reversal of 82660248865 is 56884206628.

It is a cyclic number.

It is not a de Polignac number, because 82660248865 - 2¹³ = 82660240673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370971 + ... + 550399.

It is an arithmetic number, because the mean of its divisors is an integer number (6244164000).

Almost surely, 2^82660248865 is an apocalyptic number.

It is an amenable number.

82660248865 is a deficient number, since it is larger than the sum of its proper divisors (17246375135).

82660248865 is a wasteful number, since it uses less digits than its factorization.

82660248865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180096.

The product of its (nonzero) digits is 8847360, while the sum is 55.

The spelling of 82660248865 in words is "eighty-two billion, six hundred sixty million, two hundred forty-eight thousand, eight hundred sixty-five".