66424874682 has 16 divisors (see below), whose sum is σ = 135676340352. Its totient is φ = 21670526400.

The previous prime is 66424874657. The next prime is 66424874689. The reversal of 66424874682 is 28647842466.

It is a super-2 number, since 2×66424874682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66424874689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117774319 + ... + 117774882.

It is an arithmetic number, because the mean of its divisors is an integer number (8479771272).

Almost surely, 2^66424874682 is an apocalyptic number.

66424874682 is an abundant number, since it is smaller than the sum of its proper divisors (69251465670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66424874682 is a wasteful number, since it uses less digits than its factorization.

66424874682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235549253.

The product of its digits is 24772608, while the sum is 57.

The spelling of 66424874682 in words is "sixty-six billion, four hundred twenty-four million, eight hundred seventy-four thousand, six hundred eighty-two".