216750530240 has 56 divisors (see below), whose sum is σ = 521148320160. Its totient is φ = 85858449408.

The previous prime is 216750530239. The next prime is 216750530251. The reversal of 216750530240 is 42035057612.

It is a self number, because there is not a number n which added to its sum of digits gives 216750530240.

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, 3255125 + ... + 3321044.

Almost surely, 2^216750530240 is an apocalyptic number.

216750530240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216750530240 is an abundant number, since it is smaller than the sum of its proper divisors (304397789920).

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

216750530240 is a wasteful number, since it uses less digits than its factorization.

216750530240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576289 (or 6576279 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 216750530240 its reverse (42035057612), we get a palindrome (258785587852).

The spelling of 216750530240 in words is "two hundred sixteen billion, seven hundred fifty million, five hundred thirty thousand, two hundred forty".