66682836 has 36 divisors (see below), whose sum is σ = 183884064. Its totient is φ = 20206800.

The previous prime is 66682813. The next prime is 66682841. The reversal of 66682836 is 63828666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 66682791 and 66682800.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 83800 + ... + 84591.

Almost surely, 2^66682836 is an apocalyptic number.

66682836 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

66682836 is an abundant number, since it is smaller than the sum of its proper divisors (117201228).

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

66682836 is a wasteful number, since it uses less digits than its factorization.

66682836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168412 (or 168407 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 66682836 is about 8165.9559146496. The cubic root of 66682836 is about 405.5129121054.

The spelling of 66682836 in words is "sixty-six million, six hundred eighty-two thousand, eight hundred thirty-six".