21604022073354 has 16 divisors (see below), whose sum is σ = 49380621882048. Its totient is φ = 6172577735232.

The previous prime is 21604022073341. The next prime is 21604022073377. The reversal of 21604022073354 is 45337022040612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257190738927 + ... + 257190739010.

It is an arithmetic number, because the mean of its divisors is an integer number (3086288867628).

Almost surely, 2^{21604022073354} is an apocalyptic number.

21604022073354 is an abundant number, since it is smaller than the sum of its proper divisors (27776599808694).

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

21604022073354 is a wasteful number, since it uses less digits than its factorization.

21604022073354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514381477949.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 21604022073354 in words is "twenty-one trillion, six hundred four billion, twenty-two million, seventy-three thousand, three hundred fifty-four".