216157488 has 40 divisors (see below), whose sum is σ = 559660608. Its totient is φ = 71890752.

The previous prime is 216157483. The next prime is 216157489. The reversal of 216157488 is 884751612.

It is not an unprimeable number, because it can be changed into a prime (216157483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17595 + ... + 27237.

Almost surely, 2^216157488 is an apocalyptic number.

It is an amenable number.

216157488 is an abundant number, since it is smaller than the sum of its proper divisors (343503120).

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

216157488 is a wasteful number, since it uses less digits than its factorization.

216157488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121 (or 10115 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 216157488 is about 14702.2953310019. The cubic root of 216157488 is about 600.1457867964.

The spelling of 216157488 in words is "two hundred sixteen million, one hundred fifty-seven thousand, four hundred eighty-eight".