21802147160576 has 160 divisors (see below), whose sum is σ = 47353079685120. Its totient is φ = 9990082252800.

The previous prime is 21802147160531. The next prime is 21802147160581. The reversal of 21802147160576 is 67506174120812.

It is a super-2 number, since 2×21802147160576² (a number of 27 digits) contains 22 as substring.

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, 805474595 + ... + 805501661.

It is an arithmetic number, because the mean of its divisors is an integer number (295956748032).

Almost surely, 2^{21802147160576} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21802147160576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23676539842560).

21802147160576 is an abundant number, since it is smaller than the sum of its proper divisors (25550932524544).

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

21802147160576 is a wasteful number, since it uses less digits than its factorization.

21802147160576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29806 (or 29790 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 21802147160576 in words is "twenty-one trillion, eight hundred two billion, one hundred forty-seven million, one hundred sixty thousand, five hundred seventy-six".