20869533160 has 64 divisors (see below), whose sum is σ = 54759744000. Its totient is φ = 7155263808.

The previous prime is 20869533151. The next prime is 20869533173. The reversal of 20869533160 is 6133596802.

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, 746832 + ... + 774271.

It is an arithmetic number, because the mean of its divisors is an integer number (855621000).

Almost surely, 2^20869533160 is an apocalyptic number.

20869533160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20869533160 is an abundant number, since it is smaller than the sum of its proper divisors (33890210840).

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

20869533160 is a wasteful number, since it uses less digits than its factorization.

20869533160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521135 (or 1521117 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 20869533160 in words is "twenty billion, eight hundred sixty-nine million, five hundred thirty-three thousand, one hundred sixty".