66085364 has 6 divisors (see below), whose sum is σ = 115649394. Its totient is φ = 33042680.

The previous prime is 66085361. The next prime is 66085429. The reversal of 66085364 is 46358066.

It can be written as a sum of positive squares in only one way, i.e., 63329764 + 2755600 = 7958^2 + 1660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66085361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8260667 + ... + 8260674.

It is an arithmetic number, because the mean of its divisors is an integer number (19274899).

Almost surely, 2^66085364 is an apocalyptic number.

It is an amenable number.

66085364 is a deficient number, since it is larger than the sum of its proper divisors (49564030).

66085364 is a wasteful number, since it uses less digits than its factorization.

66085364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16521345 (or 16521343 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 66085364 is about 8129.2904979463. The cubic root of 66085364 is about 404.2981575116.

The spelling of 66085364 in words is "sixty-six million, eighty-five thousand, three hundred sixty-four".