10983581077661 has 2 divisors, whose sum is σ = 10983581077662. Its totient is φ = 10983581077660.

The previous prime is 10983581077657. The next prime is 10983581077669. The reversal of 10983581077661 is 16677018538901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7982353993636 + 3001227084025 = 2825306^2 + 1732405^2 .

It is a cyclic number.

It is not a de Polignac number, because 10983581077661 - 2² = 10983581077657 is a prime.

It is a super-2 number, since 2×10983581077661² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10983581077594 and 10983581077603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10983581077669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5491790538830 + 5491790538831.

It is an arithmetic number, because the mean of its divisors is an integer number (5491790538831).

Almost surely, 2^{10983581077661} is an apocalyptic number.

It is an amenable number.

10983581077661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10983581077661 is an equidigital number, since it uses as much as digits as its factorization.

10983581077661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 62.

The spelling of 10983581077661 in words is "ten trillion, nine hundred eighty-three billion, five hundred eighty-one million, seventy-seven thousand, six hundred sixty-one".