161041750690231 has 2 divisors, whose sum is σ = 161041750690232. Its totient is φ = 161041750690230.

The previous prime is 161041750690213. The next prime is 161041750690243. The reversal of 161041750690231 is 132096057140161.

161041750690231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (161041750690213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161041750690231 - 2⁹ = 161041750689719 is a prime.

It is a super-2 number, since 2×161041750690231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161041750190231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80520875345115 + 80520875345116.

It is an arithmetic number, because the mean of its divisors is an integer number (80520875345116).

Almost surely, 2^{161041750690231} is an apocalyptic number.

161041750690231 is a deficient number, since it is larger than the sum of its proper divisors (1).

161041750690231 is an equidigital number, since it uses as much as digits as its factorization.

161041750690231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 161041750690231 in words is "one hundred sixty-one trillion, forty-one billion, seven hundred fifty million, six hundred ninety thousand, two hundred thirty-one".