24340377661 has 2 divisors, whose sum is σ = 24340377662. Its totient is φ = 24340377660.

The previous prime is 24340377631. The next prime is 24340377679. The reversal of 24340377661 is 16677304342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17823852036 + 6516525625 = 133506^2 + 80725^2 .

It is a cyclic number.

It is not a de Polignac number, because 24340377661 - 2⁵ = 24340377629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24340377631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12170188830 + 12170188831.

It is an arithmetic number, because the mean of its divisors is an integer number (12170188831).

Almost surely, 2^24340377661 is an apocalyptic number.

It is an amenable number.

24340377661 is a deficient number, since it is larger than the sum of its proper divisors (1).

24340377661 is an equidigital number, since it uses as much as digits as its factorization.

24340377661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 24340377661 in words is "twenty-four billion, three hundred forty million, three hundred seventy-seven thousand, six hundred sixty-one".