20885776105320 has 240 divisors, whose sum is σ = 81660543590340. Its totient is φ = 4773891644928.

The previous prime is 20885776105309. The next prime is 20885776105361. The reversal of 20885776105320 is 2350167758802.

20885776105320 is a `hidden beast` number, since 2 + 0 + 8 + 8 + 577 + 6 + 10 + 53 + 2 + 0 = 666.

20885776105320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19507044555684 + 1378731549636 = 4416678^2 + 1174194^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 65619069 + ... + 65936588.

Almost surely, 2^{20885776105320} is an apocalyptic number.

20885776105320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20885776105320 is an abundant number, since it is smaller than the sum of its proper divisors (60774767485020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20885776105320 is a wasteful number, since it uses less digits than its factorization.

20885776105320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131555694 (or 131555674 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 20885776105320 in words is "twenty trillion, eight hundred eighty-five billion, seven hundred seventy-six million, one hundred five thousand, three hundred twenty".