82665426207 has 32 divisors (see below), whose sum is σ = 135828808192. Its totient is φ = 43548223104.

The previous prime is 82665426203. The next prime is 82665426223. The reversal of 82665426207 is 70262456628.

It is not a de Polignac number, because 82665426207 - 2² = 82665426203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82665426203) 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, 22473 + ... + 407229.

It is an arithmetic number, because the mean of its divisors is an integer number (4244650256).

Almost surely, 2^82665426207 is an apocalyptic number.

82665426207 is a deficient number, since it is larger than the sum of its proper divisors (53163381985).

82665426207 is a wasteful number, since it uses less digits than its factorization.

82665426207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385567.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 82665426207 in words is "eighty-two billion, six hundred sixty-five million, four hundred twenty-six thousand, two hundred seven".