21337216606753 has 8 divisors (see below), whose sum is σ = 21357862860416. Its totient is φ = 21316571010000.

The previous prime is 21337216606751. The next prime is 21337216606837. The reversal of 21337216606753 is 35760661273312.

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 21337216606753 - 2¹ = 21337216606751 is a prime.

It is a super-3 number, since 3×21337216606753³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21337216606753.

It is not an unprimeable number, because it can be changed into a prime (21337216606751) 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, 87217000 + ... + 87461302.

It is an arithmetic number, because the mean of its divisors is an integer number (2669732857552).

Almost surely, 2^{21337216606753} is an apocalyptic number.

It is an amenable number.

21337216606753 is a deficient number, since it is larger than the sum of its proper divisors (20646253663).

21337216606753 is a wasteful number, since it uses less digits than its factorization.

21337216606753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328455.

The product of its (nonzero) digits is 5715360, while the sum is 52.

The spelling of 21337216606753 in words is "twenty-one trillion, three hundred thirty-seven billion, two hundred sixteen million, six hundred six thousand, seven hundred fifty-three".