20266044042 has 16 divisors (see below), whose sum is σ = 40823687520. Its totient is φ = 6706748112.

The previous prime is 20266044041. The next prime is 20266044053. The reversal of 20266044042 is 24044066202.

It is a super-2 number, since 2×20266044042² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20266044041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12149073 + ... + 12150740.

It is an arithmetic number, because the mean of its divisors is an integer number (2551480470).

Almost surely, 2^20266044042 is an apocalyptic number.

20266044042 is an abundant number, since it is smaller than the sum of its proper divisors (20557643478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20266044042 is a wasteful number, since it uses less digits than its factorization.

20266044042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24299957.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20266044042 in words is "twenty billion, two hundred sixty-six million, forty-four thousand, forty-two".