66575824426 has 16 divisors (see below), whose sum is σ = 104331398400. Its totient is φ = 31802185008.

The previous prime is 66575824423. The next prime is 66575824453. The reversal of 66575824426 is 62442857566.

It is not an unprimeable number, because it can be changed into a prime (66575824423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 834786 + ... + 911053.

It is an arithmetic number, because the mean of its divisors is an integer number (6520712400).

Almost surely, 2^66575824426 is an apocalyptic number.

66575824426 is a deficient number, since it is larger than the sum of its proper divisors (37755573974).

66575824426 is a wasteful number, since it uses less digits than its factorization.

66575824426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746693.

The product of its digits is 19353600, while the sum is 55.

The spelling of 66575824426 in words is "sixty-six billion, five hundred seventy-five million, eight hundred twenty-four thousand, four hundred twenty-six".