240016317641 has 2 divisors, whose sum is σ = 240016317642. Its totient is φ = 240016317640.

The previous prime is 240016317637. The next prime is 240016317683. The reversal of 240016317641 is 146713610042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236751338041 + 3264979600 = 486571^2 + 57140^2 .

It is a cyclic number.

It is not a de Polignac number, because 240016317641 - 2² = 240016317637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (240016377641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120008158820 + 120008158821.

It is an arithmetic number, because the mean of its divisors is an integer number (120008158821).

Almost surely, 2^240016317641 is an apocalyptic number.

It is an amenable number.

240016317641 is a deficient number, since it is larger than the sum of its proper divisors (1).

240016317641 is an equidigital number, since it uses as much as digits as its factorization.

240016317641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 240016317641 its reverse (146713610042), we get a palindrome (386729927683).

The spelling of 240016317641 in words is "two hundred forty billion, sixteen million, three hundred seventeen thousand, six hundred forty-one".