21568542045160 has 64 divisors (see below), whose sum is σ = 53838271425600. Its totient is φ = 7710172185600.

The previous prime is 21568542045157. The next prime is 21568542045187. The reversal of 21568542045160 is 6154024586512.

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, 415392801 + ... + 415444720.

It is an arithmetic number, because the mean of its divisors is an integer number (841222991025).

Almost surely, 2^{21568542045160} is an apocalyptic number.

21568542045160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21568542045160 is an abundant number, since it is smaller than the sum of its proper divisors (32269729380440).

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

21568542045160 is a wasteful number, since it uses less digits than its factorization.

21568542045160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830837602 (or 830837598 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

It can be divided in two parts, 2156854204 and 5160, that added together give a square (2156859364 = 46442²).

The spelling of 21568542045160 in words is "twenty-one trillion, five hundred sixty-eight billion, five hundred forty-two million, forty-five thousand, one hundred sixty".