22016320521616 has 30 divisors (see below), whose sum is σ = 45019868723862. Its totient is φ = 10428783402240.

The previous prime is 22016320521577. The next prime is 22016320521641. The reversal of 22016320521616 is 61612502361022.

It can be written as a sum of positive squares in only one way, i.e., 15857088553216 + 6159231968400 = 3982096^2 + 2481780^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1905839145 + ... + 1905850696.

Almost surely, 2^{22016320521616} is an apocalyptic number.

It is an amenable number.

22016320521616 is an abundant number, since it is smaller than the sum of its proper divisors (23003548202246).

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

22016320521616 is a wasteful number, since it uses less digits than its factorization.

22016320521616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811689887 (or 3811689862 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 22016320521616 its reverse (61612502361022), we get a palindrome (83628822882638).

The spelling of 22016320521616 in words is "twenty-two trillion, sixteen billion, three hundred twenty million, five hundred twenty-one thousand, six hundred sixteen".