20225452144 has 20 divisors (see below), whose sum is σ = 39413332296. Its totient is φ = 10054269632.

The previous prime is 20225452141. The next prime is 20225452229. The reversal of 20225452144 is 44125452202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225452141) 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 3 ways as a sum of consecutive naturals, for example, 3650674 + ... + 3656209.

Almost surely, 2^20225452144 is an apocalyptic number.

It is an amenable number.

20225452144 is a deficient number, since it is larger than the sum of its proper divisors (19187880152).

20225452144 is a wasteful number, since it uses less digits than its factorization.

20225452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307064 (or 7307058 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The spelling of 20225452144 in words is "twenty billion, two hundred twenty-five million, four hundred fifty-two thousand, one hundred forty-four".