16730253103661 has 2 divisors, whose sum is σ = 16730253103662. Its totient is φ = 16730253103660.

The previous prime is 16730253103657. The next prime is 16730253103691. The reversal of 16730253103661 is 16630135203761.

16730253103661 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., 16703004998761 + 27248104900 = 4086931^2 + 165070^2 .

It is a cyclic number.

It is not a de Polignac number, because 16730253103661 - 2² = 16730253103657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16730253103651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8365126551830 + 8365126551831.

It is an arithmetic number, because the mean of its divisors is an integer number (8365126551831).

Almost surely, 2^{16730253103661} is an apocalyptic number.

It is an amenable number.

16730253103661 is a deficient number, since it is larger than the sum of its proper divisors (1).

16730253103661 is an equidigital number, since it uses as much as digits as its factorization.

16730253103661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 16730253103661 in words is "sixteen trillion, seven hundred thirty billion, two hundred fifty-three million, one hundred three thousand, six hundred sixty-one".