16240321653233 has 2 divisors, whose sum is σ = 16240321653234. Its totient is φ = 16240321653232.

The previous prime is 16240321653217. The next prime is 16240321653263. The reversal of 16240321653233 is 33235612304261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9715888489024 + 6524433164209 = 3117032^2 + 2554297^2 .

It is an emirp because it is prime and its reverse (33235612304261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16240321653233 - 2⁴ = 16240321653217 is a prime.

It is not a weakly prime, because it can be changed into another prime (16240321653263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8120160826616 + 8120160826617.

It is an arithmetic number, because the mean of its divisors is an integer number (8120160826617).

Almost surely, 2^{16240321653233} is an apocalyptic number.

It is an amenable number.

16240321653233 is a deficient number, since it is larger than the sum of its proper divisors (1).

16240321653233 is an equidigital number, since it uses as much as digits as its factorization.

16240321653233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 41.

Adding to 16240321653233 its reverse (33235612304261), we get a palindrome (49475933957494).

The spelling of 16240321653233 in words is "sixteen trillion, two hundred forty billion, three hundred twenty-one million, six hundred fifty-three thousand, two hundred thirty-three".