21604026182223 has 32 divisors (see below), whose sum is σ = 29376039813120. Its totient is φ = 14118946047360.

The previous prime is 21604026182201. The next prime is 21604026182243. The reversal of 21604026182223 is 32228162040612.

It is not a de Polignac number, because 21604026182223 - 2⁶ = 21604026182159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21604026182243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862871461 + ... + 862896497.

It is an arithmetic number, because the mean of its divisors is an integer number (918001244160).

Almost surely, 2^{21604026182223} is an apocalyptic number.

21604026182223 is a deficient number, since it is larger than the sum of its proper divisors (7772013630897).

21604026182223 is a wasteful number, since it uses less digits than its factorization.

21604026182223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40767.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 21604026182223 in words is "twenty-one trillion, six hundred four billion, twenty-six million, one hundred eighty-two thousand, two hundred twenty-three".