20552224142 has 16 divisors (see below), whose sum is σ = 31511050272. Its totient is φ = 10049788320.

The previous prime is 20552224123. The next prime is 20552224153. The reversal of 20552224142 is 24142225502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278753 + ... + 344684.

It is an arithmetic number, because the mean of its divisors is an integer number (1969440642).

Almost surely, 2^20552224142 is an apocalyptic number.

20552224142 is a deficient number, since it is larger than the sum of its proper divisors (10958826130).

20552224142 is a wasteful number, since it uses less digits than its factorization.

20552224142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623803.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 20552224142 its reverse (24142225502), we get a palindrome (44694449644).

The spelling of 20552224142 in words is "twenty billion, five hundred fifty-two million, two hundred twenty-four thousand, one hundred forty-two".