216156030 has 32 divisors (see below), whose sum is σ = 522090144. Its totient is φ = 57273216.

The previous prime is 216156011. The next prime is 216156041. The reversal of 216156030 is 30651612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18237 + ... + 27656.

It is an arithmetic number, because the mean of its divisors is an integer number (16315317).

Almost surely, 2^216156030 is an apocalyptic number.

216156030 is an abundant number, since it is smaller than the sum of its proper divisors (305934114).

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

216156030 is a wasteful number, since it uses less digits than its factorization.

216156030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46060.

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

The square root of 216156030 is about 14702.2457468239. The cubic root of 216156030 is about 600.1444374491.

The spelling of 216156030 in words is "two hundred sixteen million, one hundred fifty-six thousand, thirty".