66803182433 has 8 divisors (see below), whose sum is σ = 73696569576. Its totient is φ = 60160464000.

The previous prime is 66803182421. The next prime is 66803182441. The reversal of 66803182433 is 33428130866.

It can be written as a sum of positive squares in 4 ways, for example, as 408322849 + 66394859584 = 20207^2 + 257672^2 .

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

It is not a de Polignac number, because 66803182433 - 2⁴ = 66803182417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66803182483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62666618 + ... + 62667683.

It is an arithmetic number, because the mean of its divisors is an integer number (9212071197).

Almost surely, 2^66803182433 is an apocalyptic number.

It is an amenable number.

66803182433 is a deficient number, since it is larger than the sum of its proper divisors (6893387143).

66803182433 is a wasteful number, since it uses less digits than its factorization.

66803182433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125334355.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 66803182433 in words is "sixty-six billion, eight hundred three million, one hundred eighty-two thousand, four hundred thirty-three".