216157088 has 48 divisors (see below), whose sum is σ = 493053120. Its totient is φ = 91362816.

The previous prime is 216157063. The next prime is 216157103. The reversal of 216157088 is 880751612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9743 + ... + 22961.

It is an arithmetic number, because the mean of its divisors is an integer number (10271940).

Almost surely, 2^216157088 is an apocalyptic number.

216157088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216157088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246526560).

216157088 is an abundant number, since it is smaller than the sum of its proper divisors (276896032).

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

216157088 is a wasteful number, since it uses less digits than its factorization.

216157088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13309 (or 13301 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 216157088 is about 14702.2817276775. The cubic root of 216157088 is about 600.1454166057.

The spelling of 216157088 in words is "two hundred sixteen million, one hundred fifty-seven thousand, eighty-eight".