240164933489161 has 2 divisors, whose sum is σ = 240164933489162. Its totient is φ = 240164933489160.

The previous prime is 240164933489153. The next prime is 240164933489281. The reversal of 240164933489161 is 161984339461042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216518158277136 + 23646775212025 = 14714556^2 + 4862795^2 .

It is a cyclic number.

It is not a de Polignac number, because 240164933489161 - 2³ = 240164933489153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240164933489161.

It is not a weakly prime, because it can be changed into another prime (240164933489561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120082466744580 + 120082466744581.

It is an arithmetic number, because the mean of its divisors is an integer number (120082466744581).

Almost surely, 2^{240164933489161} is an apocalyptic number.

It is an amenable number.

240164933489161 is a deficient number, since it is larger than the sum of its proper divisors (1).

240164933489161 is an equidigital number, since it uses as much as digits as its factorization.

240164933489161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 240164933489161 in words is "two hundred forty trillion, one hundred sixty-four billion, nine hundred thirty-three million, four hundred eighty-nine thousand, one hundred sixty-one".