495666216 has 80 divisors (see below), whose sum is σ = 1398566400. Its totient is φ = 164003616.

The previous prime is 495666209. The next prime is 495666221. The reversal of 495666216 is 612666594.

It is a super-4 number, since 4×495666216⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87321 + ... + 92823.

It is an arithmetic number, because the mean of its divisors is an integer number (17482080).

Almost surely, 2^495666216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 495666216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699283200).

495666216 is an abundant number, since it is smaller than the sum of its proper divisors (902900184).

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

495666216 is a wasteful number, since it uses less digits than its factorization.

495666216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660 (or 5647 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 495666216 is about 22263.5625181596. The cubic root of 495666216 is about 791.4007174542.

The spelling of 495666216 in words is "four hundred ninety-five million, six hundred sixty-six thousand, two hundred sixteen".