20886385160 has 64 divisors (see below), whose sum is σ = 48728494080. Its totient is φ = 8048689920.

The previous prime is 20886385159. The next prime is 20886385183. The reversal of 20886385160 is 6158368802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238754 + ... + 314286.

It is an arithmetic number, because the mean of its divisors is an integer number (761382720).

Almost surely, 2^20886385160 is an apocalyptic number.

20886385160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20886385160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24364247040).

20886385160 is an abundant number, since it is smaller than the sum of its proper divisors (27842108920).

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

20886385160 is a wasteful number, since it uses less digits than its factorization.

20886385160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75798 (or 75794 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 20886385160 in words is "twenty billion, eight hundred eighty-six million, three hundred eighty-five thousand, one hundred sixty".