21802663080324 has 60 divisors (see below), whose sum is σ = 65138820567744. Its totient is φ = 6229332308016.

The previous prime is 21802663080313. The next prime is 21802663080397. The reversal of 21802663080324 is 42308036620812.

21802663080324 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 2 + 6 + 630 + 8 + 0 + 3 + 2 + 4 = 666.

It is a super-2 number, since 2×21802663080324² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21802663080324.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4806581304 + ... + 4806585839.

Almost surely, 2^{21802663080324} is an apocalyptic number.

It is an amenable number.

21802663080324 is an abundant number, since it is smaller than the sum of its proper divisors (43336157487420).

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

21802663080324 is a wasteful number, since it uses less digits than its factorization.

21802663080324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9613167166 (or 9613167155 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 21802663080324 in words is "twenty-one trillion, eight hundred two billion, six hundred sixty-three million, eighty thousand, three hundred twenty-four".