66740336 has 20 divisors (see below), whose sum is σ = 139256712. Its totient is φ = 30803136.

The previous prime is 66740327. The next prime is 66740347. The reversal of 66740336 is 63304766.

66740336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66740296 and 66740305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160226 + ... + 160641.

Almost surely, 2^66740336 is an apocalyptic number.

It is an amenable number.

66740336 is an abundant number, since it is smaller than the sum of its proper divisors (72516376).

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

66740336 is a wasteful number, since it uses less digits than its factorization.

66740336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320888 (or 320882 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 66740336 is about 8169.4758705807. The cubic root of 66740336 is about 405.6294353121.

It can be divided in two parts, 66740 and 336, that added together give a palindrome (67076).

The spelling of 66740336 in words is "sixty-six million, seven hundred forty thousand, three hundred thirty-six".