66833919682 has 8 divisors (see below), whose sum is σ = 102696023052. Its totient is φ = 32601912000.

The previous prime is 66833919679. The next prime is 66833919701. The reversal of 66833919682 is 28691933866.

It can be written as a sum of positive squares in 2 ways, for example, as 51216668721 + 15617250961 = 226311^2 + 124969^2 .

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

It is a super-2 number, since 2×66833919682² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66833919682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407523819 + ... + 407523982.

Almost surely, 2^66833919682 is an apocalyptic number.

66833919682 is a deficient number, since it is larger than the sum of its proper divisors (35862103370).

66833919682 is a wasteful number, since it uses less digits than its factorization.

66833919682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815047844.

The product of its digits is 20155392, while the sum is 61.

The spelling of 66833919682 in words is "sixty-six billion, eight hundred thirty-three million, nine hundred nineteen thousand, six hundred eighty-two".