240044354372561 has 2 divisors, whose sum is σ = 240044354372562. Its totient is φ = 240044354372560.

The previous prime is 240044354372483. The next prime is 240044354372611. The reversal of 240044354372561 is 165273453440042.

It is a happy number.

240044354372561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (240044354372611) can be obtained adding 240044354372561 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187959712825600 + 52084641546961 = 13709840^2 + 7216969^2 .

It is a cyclic number.

It is not a de Polignac number, because 240044354372561 - 2³⁰ = 240043280630737 is a prime.

It is a super-2 number, since 2×240044354372561² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240044354372261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120022177186280 + 120022177186281.

It is an arithmetic number, because the mean of its divisors is an integer number (120022177186281).

Almost surely, 2^{240044354372561} is an apocalyptic number.

It is an amenable number.

240044354372561 is a deficient number, since it is larger than the sum of its proper divisors (1).

240044354372561 is an equidigital number, since it uses as much as digits as its factorization.

240044354372561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 50.

The spelling of 240044354372561 in words is "two hundred forty trillion, forty-four billion, three hundred fifty-four million, three hundred seventy-two thousand, five hundred sixty-one".