16256502329 has 2 divisors, whose sum is σ = 16256502330. Its totient is φ = 16256502328.

The previous prime is 16256502319. The next prime is 16256502341. The reversal of 16256502329 is 92320565261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14872290304 + 1384212025 = 121952^2 + 37205^2 .

It is a cyclic number.

It is not a de Polignac number, because 16256502329 - 2⁴ = 16256502313 is a prime.

It is not a weakly prime, because it can be changed into another prime (16256502319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8128251164 + 8128251165.

It is an arithmetic number, because the mean of its divisors is an integer number (8128251165).

Almost surely, 2^16256502329 is an apocalyptic number.

It is an amenable number.

16256502329 is a deficient number, since it is larger than the sum of its proper divisors (1).

16256502329 is an equidigital number, since it uses as much as digits as its factorization.

16256502329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 16256502329 in words is "sixteen billion, two hundred fifty-six million, five hundred two thousand, three hundred twenty-nine".