20266413106 has 4 divisors (see below), whose sum is σ = 30399619662. Its totient is φ = 10133206552.

The previous prime is 20266413077. The next prime is 20266413107. The reversal of 20266413106 is 60131466202.

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., 14102750025 + 6163663081 = 118755^2 + 78509^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20266413107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066603275 + ... + 5066603278.

Almost surely, 2^20266413106 is an apocalyptic number.

20266413106 is a deficient number, since it is larger than the sum of its proper divisors (10133206556).

20266413106 is a wasteful number, since it uses less digits than its factorization.

20266413106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133206555.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 20266413106 its reverse (60131466202), we get a palindrome (80397879308).

The spelling of 20266413106 in words is "twenty billion, two hundred sixty-six million, four hundred thirteen thousand, one hundred six".