216156300 has 72 divisors (see below), whose sum is σ = 652624896. Its totient is φ = 55133760.

The previous prime is 216156287. The next prime is 216156301. The reversal of 216156300 is 3651612.

It is not an unprimeable number, because it can be changed into a prime (216156301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8764 + ... + 22563.

Almost surely, 2^216156300 is an apocalyptic number.

216156300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216156300 is an abundant number, since it is smaller than the sum of its proper divisors (436468596).

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

216156300 is a wasteful number, since it uses less digits than its factorization.

216156300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31367 (or 31360 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 216156300 is about 14702.2549290917. The cubic root of 216156300 is about 600.1446873287.

The spelling of 216156300 in words is "two hundred sixteen million, one hundred fifty-six thousand, three hundred".