21330838959585 has 32 divisors (see below), whose sum is σ = 35953495056000. Its totient is φ = 10769325590016.

The previous prime is 21330838959523. The next prime is 21330838959593. The reversal of 21330838959585 is 58595983803312.

It is not a de Polignac number, because 21330838959585 - 2¹¹ = 21330838957537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28664850 + ... + 29399579.

It is an arithmetic number, because the mean of its divisors is an integer number (1123546720500).

Almost surely, 2^{21330838959585} is an apocalyptic number.

It is an amenable number.

21330838959585 is a deficient number, since it is larger than the sum of its proper divisors (14622656096415).

21330838959585 is a wasteful number, since it uses less digits than its factorization.

21330838959585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58065745.

The product of its (nonzero) digits is 279936000, while the sum is 69.

The spelling of 21330838959585 in words is "twenty-one trillion, three hundred thirty billion, eight hundred thirty-eight million, nine hundred fifty-nine thousand, five hundred eighty-five".