20225436474 has 16 divisors (see below), whose sum is σ = 40452376608. Its totient is φ = 6741561552.

The previous prime is 20225436437. The next prime is 20225436481. The reversal of 20225436474 is 47463452202.

It is a Curzon number.

It is an unprimeable number.

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, 191544 + ... + 277740.

It is an arithmetic number, because the mean of its divisors is an integer number (2528273538).

Almost surely, 2^20225436474 is an apocalyptic number.

20225436474 is an abundant number, since it is smaller than the sum of its proper divisors (20226940134).

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

20225436474 is a wasteful number, since it uses less digits than its factorization.

20225436474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125309.

The product of its (nonzero) digits is 322560, while the sum is 39.

Adding to 20225436474 its reverse (47463452202), we get a palindrome (67688888676).

The spelling of 20225436474 in words is "twenty billion, two hundred twenty-five million, four hundred thirty-six thousand, four hundred seventy-four".