16451503352257 has 2 divisors, whose sum is σ = 16451503352258. Its totient is φ = 16451503352256.

The previous prime is 16451503352227. The next prime is 16451503352299. The reversal of 16451503352257 is 75225330515461.

16451503352257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15438227580801 + 1013275771456 = 3929151^2 + 1006616^2 .

It is a cyclic number.

It is not a de Polignac number, because 16451503352257 - 2⁷ = 16451503352129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16451503352257.

It is not a weakly prime, because it can be changed into another prime (16451503352227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8225751676128 + 8225751676129.

It is an arithmetic number, because the mean of its divisors is an integer number (8225751676129).

Almost surely, 2^{16451503352257} is an apocalyptic number.

It is an amenable number.

16451503352257 is a deficient number, since it is larger than the sum of its proper divisors (1).

16451503352257 is an equidigital number, since it uses as much as digits as its factorization.

16451503352257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 16451503352257 in words is "sixteen trillion, four hundred fifty-one billion, five hundred three million, three hundred fifty-two thousand, two hundred fifty-seven".