161346813493741 has 2 divisors, whose sum is σ = 161346813493742. Its totient is φ = 161346813493740.

The previous prime is 161346813493727. The next prime is 161346813493781. The reversal of 161346813493741 is 147394318643161.

161346813493741 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., 161087600136841 + 259213356900 = 12692029^2 + 509130^2 .

It is a cyclic number.

It is not a de Polignac number, because 161346813493741 - 2¹⁹ = 161346812969453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161346813493741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161346813493781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80673406746870 + 80673406746871.

It is an arithmetic number, because the mean of its divisors is an integer number (80673406746871).

Almost surely, 2^{161346813493741} is an apocalyptic number.

It is an amenable number.

161346813493741 is a deficient number, since it is larger than the sum of its proper divisors (1).

161346813493741 is an equidigital number, since it uses as much as digits as its factorization.

161346813493741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 61.

The spelling of 161346813493741 in words is "one hundred sixty-one trillion, three hundred forty-six billion, eight hundred thirteen million, four hundred ninety-three thousand, seven hundred forty-one".