161452246205773 has 2 divisors, whose sum is σ = 161452246205774. Its totient is φ = 161452246205772.

The previous prime is 161452246205759. The next prime is 161452246205779. The reversal of 161452246205773 is 377502642254161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155791287163044 + 5660959042729 = 12481638^2 + 2379277^2 .

It is a cyclic number.

It is not a de Polignac number, because 161452246205773 - 2¹³ = 161452246197581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161452246205779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80726123102886 + 80726123102887.

It is an arithmetic number, because the mean of its divisors is an integer number (80726123102887).

Almost surely, 2^{161452246205773} is an apocalyptic number.

It is an amenable number.

161452246205773 is a deficient number, since it is larger than the sum of its proper divisors (1).

161452246205773 is an equidigital number, since it uses as much as digits as its factorization.

161452246205773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 161452246205773 in words is "one hundred sixty-one trillion, four hundred fifty-two billion, two hundred forty-six million, two hundred five thousand, seven hundred seventy-three".