82688361566 has 8 divisors (see below), whose sum is σ = 124725462120. Its totient is φ = 41113207528.

The previous prime is 82688361533. The next prime is 82688361583. The reversal of 82688361566 is 66516388628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115486181 + ... + 115486896.

It is an arithmetic number, because the mean of its divisors is an integer number (15590682765).

Almost surely, 2^82688361566 is an apocalyptic number.

82688361566 is a deficient number, since it is larger than the sum of its proper divisors (42037100554).

82688361566 is a wasteful number, since it uses less digits than its factorization.

82688361566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230973258.

The product of its digits is 19906560, while the sum is 59.

The spelling of 82688361566 in words is "eighty-two billion, six hundred eighty-eight million, three hundred sixty-one thousand, five hundred sixty-six".