66068636 has 6 divisors (see below), whose sum is σ = 115620120. Its totient is φ = 33034316.

The previous prime is 66068623. The next prime is 66068659. The reversal of 66068636 is 63686066.

It is a super-3 number, since 3×66068636³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66068593 and 66068602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8258576 + ... + 8258583.

It is an arithmetic number, because the mean of its divisors is an integer number (19270020).

Almost surely, 2^66068636 is an apocalyptic number.

It is an amenable number.

66068636 is a deficient number, since it is larger than the sum of its proper divisors (49551484).

66068636 is a wasteful number, since it uses less digits than its factorization.

66068636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16517163 (or 16517161 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 66068636 is about 8128.2615607521. The cubic root of 66068636 is about 404.2640416858.

It can be divided in two parts, 660 and 68636, that added together give a palindrome (69296).

The spelling of 66068636 in words is "sixty-six million, sixty-eight thousand, six hundred thirty-six".