216160506 has 12 divisors (see below), whose sum is σ = 468347802. Its totient is φ = 72053496.

The previous prime is 216160501. The next prime is 216160513. The reversal of 216160506 is 605061612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 140209281 + 75951225 = 11841^2 + 8715^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 216160506.

It is not an unprimeable number, because it can be changed into a prime (216160501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6004441 + ... + 6004476.

Almost surely, 2^216160506 is an apocalyptic number.

216160506 is an abundant number, since it is smaller than the sum of its proper divisors (252187296).

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

216160506 is a wasteful number, since it uses less digits than its factorization.

216160506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008925 (or 12008922 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 216160506 is about 14702.3979676786. The cubic root of 216160506 is about 600.1485798703.

The spelling of 216160506 in words is "two hundred sixteen million, one hundred sixty thousand, five hundred six".