82221766366 has 8 divisors (see below), whose sum is σ = 123372662904. Its totient is φ = 41097545400.

The previous prime is 82221766307. The next prime is 82221766369. The reversal of 82221766366 is 66366712228.

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 (82221766369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6661185 + ... + 6673516.

It is an arithmetic number, because the mean of its divisors is an integer number (15421582863).

Almost surely, 2^82221766366 is an apocalyptic number.

82221766366 is a deficient number, since it is larger than the sum of its proper divisors (41150896538).

82221766366 is a wasteful number, since it uses less digits than its factorization.

82221766366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337786.

The product of its digits is 1741824, while the sum is 49.

The spelling of 82221766366 in words is "eighty-two billion, two hundred twenty-one million, seven hundred sixty-six thousand, three hundred sixty-six".