240302255734561 has 2 divisors, whose sum is σ = 240302255734562. Its totient is φ = 240302255734560.

The previous prime is 240302255734549. The next prime is 240302255734603. The reversal of 240302255734561 is 165437552203042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140282254734561 + 100020001000000 = 11844081^2 + 10001000^2 .

It is a cyclic number.

It is not a de Polignac number, because 240302255734561 - 2⁹ = 240302255734049 is a prime.

It is a super-2 number, since 2×240302255734561² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240302255734531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120151127867280 + 120151127867281.

It is an arithmetic number, because the mean of its divisors is an integer number (120151127867281).

Almost surely, 2^{240302255734561} is an apocalyptic number.

It is an amenable number.

240302255734561 is a deficient number, since it is larger than the sum of its proper divisors (1).

240302255734561 is an equidigital number, since it uses as much as digits as its factorization.

240302255734561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 49.

The spelling of 240302255734561 in words is "two hundred forty trillion, three hundred two billion, two hundred fifty-five million, seven hundred thirty-four thousand, five hundred sixty-one".