20266402562 has 16 divisors (see below), whose sum is σ = 35397922752. Its totient is φ = 8521721520.

The previous prime is 20266402561. The next prime is 20266402603. The reversal of 20266402562 is 26520466202.

20266402562 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20266402561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13655864 + ... + 13657347.

It is an arithmetic number, because the mean of its divisors is an integer number (2212370172).

Almost surely, 2^20266402562 is an apocalyptic number.

20266402562 is a deficient number, since it is larger than the sum of its proper divisors (15131520190).

20266402562 is a wasteful number, since it uses less digits than its factorization.

20266402562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27313273.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20266402562 its reverse (26520466202), we get a palindrome (46786868764).

It can be divided in two parts, 2026640 and 2562, that added together give a palindrome (2029202).

The spelling of 20266402562 in words is "twenty billion, two hundred sixty-six million, four hundred two thousand, five hundred sixty-two".