221610716016 has 20 divisors (see below), whose sum is σ = 572494349832. Its totient is φ = 73870238656.

The previous prime is 221610715961. The next prime is 221610716017. The reversal of 221610716016 is 610617016122.

It is a super-2 number, since 2×221610716016² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221610716017) 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, 2308444911 + ... + 2308445006.

Almost surely, 2^221610716016 is an apocalyptic number.

It is an amenable number.

221610716016 is an abundant number, since it is smaller than the sum of its proper divisors (350883633816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221610716016 is a wasteful number, since it uses less digits than its factorization.

221610716016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616889928 (or 4616889922 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 221610716016 in words is "two hundred twenty-one billion, six hundred ten million, seven hundred sixteen thousand, sixteen".