16445171100361 has 2 divisors, whose sum is σ = 16445171100362. Its totient is φ = 16445171100360.

The previous prime is 16445171100343. The next prime is 16445171100383. The reversal of 16445171100361 is 16300117154461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16434461955136 + 10709145225 = 4053944^2 + 103485^2 .

It is a cyclic number.

It is not a de Polignac number, because 16445171100361 - 2⁷ = 16445171100233 is a prime.

It is not a weakly prime, because it can be changed into another prime (16445171100301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222585550180 + 8222585550181.

It is an arithmetic number, because the mean of its divisors is an integer number (8222585550181).

Almost surely, 2^{16445171100361} is an apocalyptic number.

It is an amenable number.

16445171100361 is a deficient number, since it is larger than the sum of its proper divisors (1).

16445171100361 is an equidigital number, since it uses as much as digits as its factorization.

16445171100361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 16445171100361 in words is "sixteen trillion, four hundred forty-five billion, one hundred seventy-one million, one hundred thousand, three hundred sixty-one".