2206959821056 has 27 divisors (see below), whose sum is σ = 4405346151661. Its totient is φ = 1103468025856.

The previous prime is 2206959821029. The next prime is 2206959821057. The reversal of 2206959821056 is 6501289596022.

The square root of 2206959821056 is 1485584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 660617830656 + 1546341990400 = 812784^2 + 1243520^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2206959820988 and 2206959821006.

It is not an unprimeable number, because it can be changed into a prime (2206959821057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23722920 + ... + 23815768.

Almost surely, 2^{2206959821056} is an apocalyptic number.

2206959821056 is the 1485584-th square number.

It is an amenable number.

2206959821056 is a deficient number, since it is larger than the sum of its proper divisors (2198386330605).

2206959821056 is an frugal number, since it uses more digits than its factorization.

2206959821056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185714 (or 92851 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 2206959821056 in words is "two trillion, two hundred six billion, nine hundred fifty-nine million, eight hundred twenty-one thousand, fifty-six".