216441625046 has 4 divisors (see below), whose sum is σ = 324662437572. Its totient is φ = 108220812522.

The previous prime is 216441625039. The next prime is 216441625061. The reversal of 216441625046 is 640526144612.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 216441624994 and 216441625012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54110406260 + ... + 54110406263.

It is an arithmetic number, because the mean of its divisors is an integer number (81165609393).

Almost surely, 2^216441625046 is an apocalyptic number.

216441625046 is a deficient number, since it is larger than the sum of its proper divisors (108220812526).

216441625046 is a wasteful number, since it uses less digits than its factorization.

216441625046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108220812525.

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 216441625046 its reverse (640526144612), we get a palindrome (856967769658).

The spelling of 216441625046 in words is "two hundred sixteen billion, four hundred forty-one million, six hundred twenty-five thousand, forty-six".