16253521327 has 2 divisors, whose sum is σ = 16253521328. Its totient is φ = 16253521326.

The previous prime is 16253521261. The next prime is 16253521331. The reversal of 16253521327 is 72312535261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16253521327 - 2¹⁹ = 16252997039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16253521387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126760663 + 8126760664.

It is an arithmetic number, because the mean of its divisors is an integer number (8126760664).

Almost surely, 2^16253521327 is an apocalyptic number.

16253521327 is a deficient number, since it is larger than the sum of its proper divisors (1).

16253521327 is an equidigital number, since it uses as much as digits as its factorization.

16253521327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The spelling of 16253521327 in words is "sixteen billion, two hundred fifty-three million, five hundred twenty-one thousand, three hundred twenty-seven".