66316368 has 40 divisors (see below), whose sum is σ = 172363968. Its totient is φ = 21970432.

The previous prime is 66316361. The next prime is 66316379. The reversal of 66316368 is 86361366.

It is a super-2 number, since 2×66316368² = 8795721329422848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66316361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3880 + ... + 12152.

Almost surely, 2^66316368 is an apocalyptic number.

It is an amenable number.

66316368 is an abundant number, since it is smaller than the sum of its proper divisors (106047600).

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

66316368 is a wasteful number, since it uses less digits than its factorization.

66316368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8451 (or 8445 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 66316368 is about 8143.4862313385. The cubic root of 66316368 is about 404.7686897414.

The spelling of 66316368 in words is "sixty-six million, three hundred sixteen thousand, three hundred sixty-eight".