240360081161 has 2 divisors, whose sum is σ = 240360081162. Its totient is φ = 240360081160.

The previous prime is 240360081149. The next prime is 240360081197. The reversal of 240360081161 is 161180063042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222552780025 + 17807301136 = 471755^2 + 133444^2 .

It is a cyclic number.

It is not a de Polignac number, because 240360081161 - 2²² = 240355886857 is a prime.

It is not a weakly prime, because it can be changed into another prime (240360081361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120180040580 + 120180040581.

It is an arithmetic number, because the mean of its divisors is an integer number (120180040581).

Almost surely, 2^240360081161 is an apocalyptic number.

It is an amenable number.

240360081161 is a deficient number, since it is larger than the sum of its proper divisors (1).

240360081161 is an equidigital number, since it uses as much as digits as its factorization.

240360081161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 240360081161 in words is "two hundred forty billion, three hundred sixty million, eighty-one thousand, one hundred sixty-one".