2220216616555 has 24 divisors (see below), whose sum is σ = 3099306531600. Its totient is φ = 1522402136640.

The previous prime is 2220216616481. The next prime is 2220216616571. The reversal of 2220216616555 is 5556166120222.

It is not a de Polignac number, because 2220216616555 - 2²³ = 2220208227947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21265621 + ... + 21369769.

It is an arithmetic number, because the mean of its divisors is an integer number (129137772150).

Almost surely, 2^{2220216616555} is an apocalyptic number.

2220216616555 is a deficient number, since it is larger than the sum of its proper divisors (879089915045).

2220216616555 is a wasteful number, since it uses less digits than its factorization.

2220216616555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191179 (or 191172 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 2220216616555 in words is "two trillion, two hundred twenty billion, two hundred sixteen million, six hundred sixteen thousand, five hundred fifty-five".