82066805078 has 8 divisors (see below), whose sum is σ = 123369574872. Its totient is φ = 40943613456.

The previous prime is 82066805071. The next prime is 82066805081. The reversal of 82066805078 is 87050866028.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82066805071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44893400 + ... + 44895227.

It is an arithmetic number, because the mean of its divisors is an integer number (15421196859).

Almost surely, 2^82066805078 is an apocalyptic number.

82066805078 is a deficient number, since it is larger than the sum of its proper divisors (41302769794).

82066805078 is a wasteful number, since it uses less digits than its factorization.

82066805078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89789086.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 82066805078 in words is "eighty-two billion, sixty-six million, eight hundred five thousand, seventy-eight".