21652405602219 has 12 divisors (see below), whose sum is σ = 35743653692656. Its totient is φ = 12372803201232.

The previous prime is 21652405602181. The next prime is 21652405602299. The reversal of 21652405602219 is 91220650425612.

21652405602219 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 24 + 0 + 5 + 602 + 2 + 19 = 666.

It is not a de Polignac number, because 21652405602219 - 2¹¹ = 21652405600171 is a prime.

It is a super-2 number, since 2×21652405602219² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21652405602299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171844488844 + ... + 171844488969.

Almost surely, 2^{21652405602219} is an apocalyptic number.

21652405602219 is a deficient number, since it is larger than the sum of its proper divisors (14091248090437).

21652405602219 is a wasteful number, since it uses less digits than its factorization.

21652405602219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343688977826 (or 343688977823 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 21652405602219 in words is "twenty-one trillion, six hundred fifty-two billion, four hundred five million, six hundred two thousand, two hundred nineteen".