66065760982 has 16 divisors (see below), whose sum is σ = 108471151152. Its totient is φ = 29992021920.

The previous prime is 66065760979. The next prime is 66065760989. The reversal of 66065760982 is 28906756066.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66065760989) 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 7 ways as a sum of consecutive naturals, for example, 20826208 + ... + 20829379.

It is an arithmetic number, because the mean of its divisors is an integer number (6779446947).

Almost surely, 2^66065760982 is an apocalyptic number.

66065760982 is a deficient number, since it is larger than the sum of its proper divisors (42405390170).

66065760982 is a wasteful number, since it uses less digits than its factorization.

66065760982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41655663.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 66065760982 in words is "sixty-six billion, sixty-five million, seven hundred sixty thousand, nine hundred eighty-two".