21334165333153 has 8 divisors (see below), whose sum is σ = 22070092429800. Its totient is φ = 20598255984768.

The previous prime is 21334165333141. The next prime is 21334165333177. The reversal of 21334165333153 is 35133356143312.

It can be written as a sum of positive squares in 4 ways, for example, as 3429563240464 + 17904602092689 = 1851908^2 + 4231383^2 .

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 21334165333153 - 2²⁵ = 21334131778721 is a prime.

It is a super-2 number, since 2×21334165333153² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21334165331153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968226 + ... + 6822187.

It is an arithmetic number, because the mean of its divisors is an integer number (2758761553725).

Almost surely, 2^{21334165333153} is an apocalyptic number.

It is an amenable number.

21334165333153 is a deficient number, since it is larger than the sum of its proper divisors (735927096647).

21334165333153 is an equidigital number, since it uses as much as digits as its factorization.

21334165333153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8874131.

The product of its digits is 874800, while the sum is 43.

The spelling of 21334165333153 in words is "twenty-one trillion, three hundred thirty-four billion, one hundred sixty-five million, three hundred thirty-three thousand, one hundred fifty-three".