2216118756638 has 16 divisors (see below), whose sum is σ = 3388636555200. Its totient is φ = 1086594696096.

The previous prime is 2216118756623. The next prime is 2216118756653. The reversal of 2216118756638 is 8366578116122.

It is an interprime number because it is at equal distance from previous prime (2216118756623) and next prime (2216118756653).

It is a super-2 number, since 2×2216118756638² (a number of 25 digits) contains 22 as substring.

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, 5156870 + ... + 5570057.

It is an arithmetic number, because the mean of its divisors is an integer number (211789784700).

Almost surely, 2^{2216118756638} is an apocalyptic number.

2216118756638 is a deficient number, since it is larger than the sum of its proper divisors (1172517798562).

2216118756638 is a wasteful number, since it uses less digits than its factorization.

2216118756638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728931.

The product of its digits is 5806080, while the sum is 56.

The spelling of 2216118756638 in words is "two trillion, two hundred sixteen billion, one hundred eighteen million, seven hundred fifty-six thousand, six hundred thirty-eight".