66598922827 has 8 divisors (see below), whose sum is σ = 66953096864. Its totient is φ = 66244843008.

The previous prime is 66598922813. The next prime is 66598922839. The reversal of 66598922827 is 72822989566.

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 66598922827 - 2⁷ = 66598922699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66598922857) 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, 1743778 + ... + 1781560.

It is an arithmetic number, because the mean of its divisors is an integer number (8369137108).

Almost surely, 2^66598922827 is an apocalyptic number.

66598922827 is a deficient number, since it is larger than the sum of its proper divisors (354174037).

66598922827 is a wasteful number, since it uses less digits than its factorization.

66598922827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47109.

The product of its digits is 52254720, while the sum is 64.

The spelling of 66598922827 in words is "sixty-six billion, five hundred ninety-eight million, nine hundred twenty-two thousand, eight hundred twenty-seven".