20226523564 has 24 divisors (see below), whose sum is σ = 39776577120. Its totient is φ = 8929434624.

The previous prime is 20226523561. The next prime is 20226523589. The reversal of 20226523564 is 46532562202.

It is a super-2 number, since 2×20226523564² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20226523561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8454709 + ... + 8457100.

It is an arithmetic number, because the mean of its divisors is an integer number (1657357380).

Almost surely, 2^20226523564 is an apocalyptic number.

It is an amenable number.

20226523564 is a deficient number, since it is larger than the sum of its proper divisors (19550053556).

20226523564 is a wasteful number, since it uses less digits than its factorization.

20226523564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16911849 (or 16911847 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20226523564 in words is "twenty billion, two hundred twenty-six million, five hundred twenty-three thousand, five hundred sixty-four".