240933748661 has 2 divisors, whose sum is σ = 240933748662. Its totient is φ = 240933748660.

The previous prime is 240933748631. The next prime is 240933748709. The reversal of 240933748661 is 166847339042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234928273636 + 6005475025 = 484694^2 + 77495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240933748661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240933748631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120466874330 + 120466874331.

It is an arithmetic number, because the mean of its divisors is an integer number (120466874331).

Almost surely, 2^240933748661 is an apocalyptic number.

It is an amenable number.

240933748661 is a deficient number, since it is larger than the sum of its proper divisors (1).

240933748661 is an equidigital number, since it uses as much as digits as its factorization.

240933748661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 240933748661 in words is "two hundred forty billion, nine hundred thirty-three million, seven hundred forty-eight thousand, six hundred sixty-one".