216526068 has 48 divisors (see below), whose sum is σ = 612400320. Its totient is φ = 65613600.

The previous prime is 216526031. The next prime is 216526069. The reversal of 216526068 is 860625612.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216526069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89943 + ... + 92318.

It is an arithmetic number, because the mean of its divisors is an integer number (12758340).

Almost surely, 2^216526068 is an apocalyptic number.

It is an amenable number.

216526068 is an abundant number, since it is smaller than the sum of its proper divisors (395874252).

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

216526068 is a wasteful number, since it uses less digits than its factorization.

216526068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182285 (or 182277 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 216526068 is about 14714.8247695989. The cubic root of 216526068 is about 600.4867050902.

The spelling of 216526068 in words is "two hundred sixteen million, five hundred twenty-six thousand, sixty-eight".