161046352444501 has 2 divisors, whose sum is σ = 161046352444502. Its totient is φ = 161046352444500.

The previous prime is 161046352444489. The next prime is 161046352444517. The reversal of 161046352444501 is 105444253640161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132275991276900 + 28770361167601 = 11501130^2 + 5363801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161046352444501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161046352445501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80523176222250 + 80523176222251.

It is an arithmetic number, because the mean of its divisors is an integer number (80523176222251).

Almost surely, 2^{161046352444501} is an apocalyptic number.

It is an amenable number.

161046352444501 is a deficient number, since it is larger than the sum of its proper divisors (1).

161046352444501 is an equidigital number, since it uses as much as digits as its factorization.

161046352444501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 161046352444501 in words is "one hundred sixty-one trillion, forty-six billion, three hundred fifty-two million, four hundred forty-four thousand, five hundred one".