21332850605005 has 8 divisors (see below), whose sum is σ = 26291296962072. Its totient is φ = 16605029659968.

The previous prime is 21332850604973. The next prime is 21332850605021. The reversal of 21332850605005 is 50050605823312.

It can be written as a sum of positive squares in 4 ways, for example, as 13571517074116 + 7761333530889 = 3683954^2 + 2785917^2 .

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 21332850605005 - 2⁵ = 21332850604973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57656352802 + ... + 57656353171.

It is an arithmetic number, because the mean of its divisors is an integer number (3286412120259).

Almost surely, 2^{21332850605005} is an apocalyptic number.

It is an amenable number.

21332850605005 is a deficient number, since it is larger than the sum of its proper divisors (4958446357067).

21332850605005 is a wasteful number, since it uses less digits than its factorization.

21332850605005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115312706015.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 21332850605005 in words is "twenty-one trillion, three hundred thirty-two billion, eight hundred fifty million, six hundred five thousand, five".