20606880226 has 4 divisors (see below), whose sum is σ = 30910320342. Its totient is φ = 10303440112.

The previous prime is 20606880221. The next prime is 20606880253. The reversal of 20606880226 is 62208860602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17782489201 + 2824391025 = 133351^2 + 53145^2 .

It is a super-2 number, since 2×20606880226² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20606880221) 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 as a sum of consecutive naturals, namely, 5151720055 + ... + 5151720058.

Almost surely, 2^20606880226 is an apocalyptic number.

20606880226 is a deficient number, since it is larger than the sum of its proper divisors (10303440116).

20606880226 is a wasteful number, since it uses less digits than its factorization.

20606880226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303440115.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 20606880226 in words is "twenty billion, six hundred six million, eight hundred eighty thousand, two hundred twenty-six".