66763822 has 8 divisors (see below), whose sum is σ = 100760616. Its totient is φ = 33176952.

The previous prime is 66763819. The next prime is 66763843. The reversal of 66763822 is 22836766.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102073 + ... + 102724.

It is an arithmetic number, because the mean of its divisors is an integer number (12595077).

Almost surely, 2^66763822 is an apocalyptic number.

66763822 is a deficient number, since it is larger than the sum of its proper divisors (33996794).

66763822 is a wasteful number, since it uses less digits than its factorization.

66763822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204962.

The product of its digits is 145152, while the sum is 40.

The square root of 66763822 is about 8170.9131680614. The cubic root of 66763822 is about 405.6770102183.

The spelling of 66763822 in words is "sixty-six million, seven hundred sixty-three thousand, eight hundred twenty-two".