21320082635017 has 8 divisors (see below), whose sum is σ = 21438416536992. Its totient is φ = 21202013760000.

The previous prime is 21320082634969. The next prime is 21320082635063. The reversal of 21320082635017 is 71053628002312.

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 21320082635017 - 2⁷ = 21320082634889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21320082665017) 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, 66095403 + ... + 66417184.

It is an arithmetic number, because the mean of its divisors is an integer number (2679802067124).

Almost surely, 2^{21320082635017} is an apocalyptic number.

It is an amenable number.

21320082635017 is a deficient number, since it is larger than the sum of its proper divisors (118333901975).

21320082635017 is a wasteful number, since it uses less digits than its factorization.

21320082635017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132513479.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 21320082635017 in words is "twenty-one trillion, three hundred twenty billion, eighty-two million, six hundred thirty-five thousand, seventeen".