216500240126 has 8 divisors (see below), whose sum is σ = 325490111760. Its totient is φ = 108003536208.

The previous prime is 216500240119. The next prime is 216500240129. The reversal of 216500240126 is 621042005612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216500240129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123290831 + ... + 123292586.

It is an arithmetic number, because the mean of its divisors is an integer number (40686263970).

Almost surely, 2^216500240126 is an apocalyptic number.

216500240126 is a deficient number, since it is larger than the sum of its proper divisors (108989871634).

216500240126 is a wasteful number, since it uses less digits than its factorization.

216500240126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246583858.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 216500240126 its reverse (621042005612), we get a palindrome (837542245738).

The spelling of 216500240126 in words is "two hundred sixteen billion, five hundred million, two hundred forty thousand, one hundred twenty-six".