2220765626 has 8 divisors (see below), whose sum is σ = 3337543764. Its totient is φ = 1108251040.

The previous prime is 2220765611. The next prime is 2220765643. The reversal of 2220765626 is 6265670222.

It is a Cunningham number, because it is equal to 47125²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2220765625 + 1 = 47125^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220765626.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064585 + ... + 1066668.

Almost surely, 2^2220765626 is an apocalyptic number.

2220765626 is a deficient number, since it is larger than the sum of its proper divisors (1116778138).

2220765626 is a wasteful number, since it uses less digits than its factorization.

2220765626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131776.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2220765626 is about 47125.0000106101. Note that the first 4 decimals coincide. The cubic root of 2220765626 is about 1304.6706990006.

The spelling of 2220765626 in words is "two billion, two hundred twenty million, seven hundred sixty-five thousand, six hundred twenty-six".