2216556344 has 8 divisors (see below), whose sum is σ = 4156043160. Its totient is φ = 1108278168.

The previous prime is 2216556343. The next prime is 2216556347. The reversal of 2216556344 is 4436556122.

2216556344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2216556344² = 9826244052253292672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2216556298 and 2216556307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216556341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138534764 + ... + 138534779.

It is an arithmetic number, because the mean of its divisors is an integer number (519505395).

Almost surely, 2^2216556344 is an apocalyptic number.

It is an amenable number.

2216556344 is a deficient number, since it is larger than the sum of its proper divisors (1939486816).

2216556344 is a wasteful number, since it uses less digits than its factorization.

2216556344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277069549 (or 277069545 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 2216556344 is about 47080.3180108206. The cubic root of 2216556344 is about 1303.8458783184.

The spelling of 2216556344 in words is "two billion, two hundred sixteen million, five hundred fifty-six thousand, three hundred forty-four".