21641022032304 has 40 divisors (see below), whose sum is σ = 56276211837952. Its totient is φ = 7165901332800.

The previous prime is 21641022032291. The next prime is 21641022032309. The reversal of 21641022032304 is 40323022014612.

It is not an unprimeable number, because it can be changed into a prime (21641022032309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492888864 + ... + 1492903359.

Almost surely, 2^{21641022032304} is an apocalyptic number.

21641022032304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21641022032304 is an abundant number, since it is smaller than the sum of its proper divisors (34635189805648).

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

21641022032304 is a wasteful number, since it uses less digits than its factorization.

21641022032304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985792385 (or 2985792379 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 21641022032304 its reverse (40323022014612), we get a palindrome (61964044046916).

The spelling of 21641022032304 in words is "twenty-one trillion, six hundred forty-one billion, twenty-two million, thirty-two thousand, three hundred four".