16451377361473 has 2 divisors, whose sum is σ = 16451377361474. Its totient is φ = 16451377361472.

The previous prime is 16451377361401. The next prime is 16451377361477. The reversal of 16451377361473 is 37416377315461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15247369324944 + 1204008036529 = 3904788^2 + 1097273^2 .

It is a cyclic number.

It is not a de Polignac number, because 16451377361473 - 2⁹ = 16451377360961 is a prime.

It is not a weakly prime, because it can be changed into another prime (16451377361477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8225688680736 + 8225688680737.

It is an arithmetic number, because the mean of its divisors is an integer number (8225688680737).

Almost surely, 2^{16451377361473} is an apocalyptic number.

It is an amenable number.

16451377361473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16451377361473 is an equidigital number, since it uses as much as digits as its factorization.

16451377361473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26671680, while the sum is 58.

The spelling of 16451377361473 in words is "sixteen trillion, four hundred fifty-one billion, three hundred seventy-seven million, three hundred sixty-one thousand, four hundred seventy-three".