66011164 has 12 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 32963168.

The previous prime is 66011161. The next prime is 66011177. The reversal of 66011164 is 46111066.

66011164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66011161) by changing a digit.

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, 6964 + ... + 13435.

It is an arithmetic number, because the mean of its divisors is an integer number (9639000).

Almost surely, 2^66011164 is an apocalyptic number.

It is an amenable number.

66011164 is a deficient number, since it is larger than the sum of its proper divisors (49656836).

66011164 is a wasteful number, since it uses less digits than its factorization.

66011164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212 (or 21210 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 66011164 is about 8124.7254722852. The cubic root of 66011164 is about 404.1467868400.

The spelling of 66011164 in words is "sixty-six million, eleven thousand, one hundred sixty-four".