2066520226 has 8 divisors (see below), whose sum is σ = 3183558300. Its totient is φ = 1005334128.

The previous prime is 2066520167. The next prime is 2066520227. The reversal of 2066520226 is 6220256602.

It can be written as a sum of positive squares in 2 ways, for example, as 1631756025 + 434764201 = 40395^2 + 20851^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2066520227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13962901 + ... + 13963048.

Almost surely, 2^2066520226 is an apocalyptic number.

2066520226 is a deficient number, since it is larger than the sum of its proper divisors (1117038074).

2066520226 is a wasteful number, since it uses less digits than its factorization.

2066520226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27925988.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2066520226 is about 45458.9949954902. The cubic root of 2066520226 is about 1273.7373584425.

Adding to 2066520226 its reverse (6220256602), we get a palindrome (8286776828).

The spelling of 2066520226 in words is "two billion, sixty-six million, five hundred twenty thousand, two hundred twenty-six".