66788546133 has 8 divisors (see below), whose sum is σ = 89052931008. Its totient is φ = 44524929344.

The previous prime is 66788546101. The next prime is 66788546137. The reversal of 66788546133 is 33164588766.

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

It is a cyclic number.

It is not a de Polignac number, because 66788546133 - 2⁵ = 66788546101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66788546137) 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, 57016 + ... + 369902.

It is an arithmetic number, because the mean of its divisors is an integer number (11131616376).

Almost surely, 2^66788546133 is an apocalyptic number.

It is an amenable number.

66788546133 is a deficient number, since it is larger than the sum of its proper divisors (22264384875).

66788546133 is a wasteful number, since it uses less digits than its factorization.

66788546133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384043.

The product of its digits is 17418240, while the sum is 57.

The spelling of 66788546133 in words is "sixty-six billion, seven hundred eighty-eight million, five hundred forty-six thousand, one hundred thirty-three".