66911536 has 20 divisors (see below), whose sum is σ = 131469264. Its totient is φ = 32984000.

The previous prime is 66911519. The next prime is 66911539. The reversal of 66911536 is 63511966.

It is a junction number, because it is equal to n+sod(n) for n = 66911495 and 66911504.

It is not an unprimeable number, because it can be changed into a prime (66911539) 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 3 ways as a sum of consecutive naturals, for example, 28315 + ... + 30586.

Almost surely, 2^66911536 is an apocalyptic number.

It is an amenable number.

66911536 is a deficient number, since it is larger than the sum of its proper divisors (64557728).

66911536 is a wasteful number, since it uses less digits than its factorization.

66911536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58980 (or 58974 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 66911536 is about 8179.9471880936. The cubic root of 66911536 is about 405.9759747000.

The spelling of 66911536 in words is "sixty-six million, nine hundred eleven thousand, five hundred thirty-six".