216441625045 has 16 divisors (see below), whose sum is σ = 262436485248. Its totient is φ = 171358081600.

The previous prime is 216441625039. The next prime is 216441625061. The reversal of 216441625045 is 540526144612.

It is not a de Polignac number, because 216441625045 - 2¹⁵ = 216441592277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216441624989 and 216441625007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381406 + ... + 760495.

It is an arithmetic number, because the mean of its divisors is an integer number (16402280328).

Almost surely, 2^216441625045 is an apocalyptic number.

It is an amenable number.

216441625045 is a deficient number, since it is larger than the sum of its proper divisors (45994860203).

216441625045 is a wasteful number, since it uses less digits than its factorization.

216441625045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142300.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 216441625045 its reverse (540526144612), we get a palindrome (756967769657).

The spelling of 216441625045 in words is "two hundred sixteen billion, four hundred forty-one million, six hundred twenty-five thousand, forty-five".