216152680 has 16 divisors (see below), whose sum is σ = 486343620. Its totient is φ = 86461056.

The previous prime is 216152669. The next prime is 216152693. The reversal of 216152680 is 86251612.

It can be written as a sum of positive squares in 2 ways, for example, as 194937444 + 21215236 = 13962^2 + 4606^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2701869 + ... + 2701948.

Almost surely, 2^216152680 is an apocalyptic number.

216152680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216152680 is an abundant number, since it is smaller than the sum of its proper divisors (270190940).

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

216152680 is a wasteful number, since it uses less digits than its factorization.

216152680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403828 (or 5403824 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 216152680 is about 14702.1318182092. The cubic root of 216152680 is about 600.1413370741.

The spelling of 216152680 in words is "two hundred sixteen million, one hundred fifty-two thousand, six hundred eighty".