20563161122 has 32 divisors (see below), whose sum is σ = 37714788480. Its totient is φ = 8212078080.

The previous prime is 20563161097. The next prime is 20563161131. The reversal of 20563161122 is 22116136502.

It is a super-4 number, since 4×20563161122⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617423 + ... + 649874.

It is an arithmetic number, because the mean of its divisors is an integer number (1178587140).

Almost surely, 2^20563161122 is an apocalyptic number.

20563161122 is a deficient number, since it is larger than the sum of its proper divisors (17151627358).

20563161122 is a wasteful number, since it uses less digits than its factorization.

20563161122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267386.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 20563161122 its reverse (22116136502), we get a palindrome (42679297624).

The spelling of 20563161122 in words is "twenty billion, five hundred sixty-three million, one hundred sixty-one thousand, one hundred twenty-two".