2216665334456 has 32 divisors (see below), whose sum is σ = 4339038736800. Its totient is φ = 1059634667520.

The previous prime is 2216665334329. The next prime is 2216665334461. The reversal of 2216665334456 is 6544335666122.

It is a junction number, because it is equal to n+sod(n) for n = 2216665334398 and 2216665334407.

It is a congruent number.

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, 2511641 + ... + 3277448.

It is an arithmetic number, because the mean of its divisors is an integer number (135594960525).

Almost surely, 2^{2216665334456} is an apocalyptic number.

It is an amenable number.

2216665334456 is a deficient number, since it is larger than the sum of its proper divisors (2122373402344).

2216665334456 is a wasteful number, since it uses less digits than its factorization.

2216665334456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791199 (or 5791195 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 53.

The spelling of 2216665334456 in words is "two trillion, two hundred sixteen billion, six hundred sixty-five million, three hundred thirty-four thousand, four hundred fifty-six".