216500240143 has 12 divisors (see below), whose sum is σ = 238107787960. Its totient is φ = 196705547280.

The previous prime is 216500240141. The next prime is 216500240171. The reversal of 216500240143 is 341042005612.

It is not a de Polignac number, because 216500240143 - 2¹ = 216500240141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216500240141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300708 + ... + 723481.

Almost surely, 2^216500240143 is an apocalyptic number.

216500240143 is a deficient number, since it is larger than the sum of its proper divisors (21607547817).

216500240143 is a wasteful number, since it uses less digits than its factorization.

216500240143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025958 (or 1025947 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 216500240143 its reverse (341042005612), we get a palindrome (557542245755).

The spelling of 216500240143 in words is "two hundred sixteen billion, five hundred million, two hundred forty thousand, one hundred forty-three".