16640233542241 has 8 divisors (see below), whose sum is σ = 17216017914600. Its totient is φ = 16064581384320.

The previous prime is 16640233542143. The next prime is 16640233542253. The reversal of 16640233542241 is 14224533204661.

It can be written as a sum of positive squares in 4 ways, for example, as 1548593580625 + 15091639961616 = 1244425^2 + 3884796^2 .

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 16640233542241 - 2²⁵ = 16640199987809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16640233542941) 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, 32797506 + ... + 33301003.

It is an arithmetic number, because the mean of its divisors is an integer number (2152002239325).

Almost surely, 2^{16640233542241} is an apocalyptic number.

It is an amenable number.

16640233542241 is a deficient number, since it is larger than the sum of its proper divisors (575784372359).

16640233542241 is an equidigital number, since it uses as much as digits as its factorization.

16640233542241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66107219.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 16640233542241 in words is "sixteen trillion, six hundred forty billion, two hundred thirty-three million, five hundred forty-two thousand, two hundred forty-one".