20560103356 has 24 divisors (see below), whose sum is σ = 38849094144. Its totient is φ = 9464493120.

The previous prime is 20560103341. The next prime is 20560103401. The reversal of 20560103356 is 65330106502.

It is a congruent 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, 496255 + ... + 536086.

It is an arithmetic number, because the mean of its divisors is an integer number (1618712256).

Almost surely, 2^20560103356 is an apocalyptic number.

20560103356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20560103356 is a deficient number, since it is larger than the sum of its proper divisors (18288990788).

20560103356 is a wasteful number, since it uses less digits than its factorization.

20560103356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032741 (or 1032739 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 20560103356 its reverse (65330106502), we get a palindrome (85890209858).

The spelling of 20560103356 in words is "twenty billion, five hundred sixty million, one hundred three thousand, three hundred fifty-six".