216441222545 has 8 divisors (see below), whose sum is σ = 259740064320. Its totient is φ = 173145913200.

The previous prime is 216441222497. The next prime is 216441222581. The reversal of 216441222545 is 545222144612.

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

It is not a de Polignac number, because 216441222545 - 2²⁴ = 216424445329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216441222499 and 216441222508.

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, 746381 + ... + 994970.

It is an arithmetic number, because the mean of its divisors is an integer number (32467508040).

Almost surely, 2^216441222545 is an apocalyptic number.

It is an amenable number.

216441222545 is a deficient number, since it is larger than the sum of its proper divisors (43298841775).

216441222545 is a wasteful number, since it uses less digits than its factorization.

216441222545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766215.

The product of its digits is 153600, while the sum is 38.

The spelling of 216441222545 in words is "two hundred sixteen billion, four hundred forty-one million, two hundred twenty-two thousand, five hundred forty-five".