20552224144 has 40 divisors (see below), whose sum is σ = 40533397760. Its totient is φ = 10093344768.

The previous prime is 20552224123. The next prime is 20552224153. The reversal of 20552224144 is 44142225502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201829 + ... + 286075.

It is an arithmetic number, because the mean of its divisors is an integer number (1013334944).

Almost surely, 2^20552224144 is an apocalyptic number.

It is an amenable number.

20552224144 is a deficient number, since it is larger than the sum of its proper divisors (19981173616).

20552224144 is a wasteful number, since it uses less digits than its factorization.

20552224144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84527 (or 84521 counting only the distinct ones).

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

Adding to 20552224144 its reverse (44142225502), we get a palindrome (64694449646).

The spelling of 20552224144 in words is "twenty billion, five hundred fifty-two million, two hundred twenty-four thousand, one hundred forty-four".