66777443322 has 8 divisors (see below), whose sum is σ = 133554886656. Its totient is φ = 22259147772.

The previous prime is 66777443321. The next prime is 66777443329. The reversal of 66777443322 is 22334477766.

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

66777443322 is an admirable number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (66777443321) 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, 5564786938 + ... + 5564786949.

It is an arithmetic number, because the mean of its divisors is an integer number (16694360832).

Almost surely, 2^66777443322 is an apocalyptic number.

66777443322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66777443322 is a wasteful number, since it uses less digits than its factorization.

66777443322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11129573892.

The product of its digits is 7112448, while the sum is 51.

The spelling of 66777443322 in words is "sixty-six billion, seven hundred seventy-seven million, four hundred forty-three thousand, three hundred twenty-two".