21446232264161 has 8 divisors (see below), whose sum is σ = 21803990330304. Its totient is φ = 21088673568720.

The previous prime is 21446232264139. The next prime is 21446232264167. The reversal of 21446232264161 is 16146223264412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21446232264161 - 2⁶ = 21446232264097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21446232264167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49625735 + ... + 50056028.

It is an arithmetic number, because the mean of its divisors is an integer number (2725498791288).

Almost surely, 2^{21446232264161} is an apocalyptic number.

It is an amenable number.

21446232264161 is a deficient number, since it is larger than the sum of its proper divisors (357758066143).

21446232264161 is an equidigital number, since it uses as much as digits as its factorization.

21446232264161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99685351.

The product of its digits is 663552, while the sum is 44.

The spelling of 21446232264161 in words is "twenty-one trillion, four hundred forty-six billion, two hundred thirty-two million, two hundred sixty-four thousand, one hundred sixty-one".