10532556799981 has 2 divisors, whose sum is σ = 10532556799982. Its totient is φ = 10532556799980.

The previous prime is 10532556799967. The next prime is 10532556799991. The reversal of 10532556799981 is 18999765523501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10193173655625 + 339383144356 = 3192675^2 + 582566^2 .

It is a cyclic number.

It is not a de Polignac number, because 10532556799981 - 2⁵ = 10532556799949 is a prime.

It is a super-2 number, since 2×10532556799981² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10532556799981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10532556799991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5266278399990 + 5266278399991.

It is an arithmetic number, because the mean of its divisors is an integer number (5266278399991).

Almost surely, 2^{10532556799981} is an apocalyptic number.

It is an amenable number.

10532556799981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10532556799981 is an equidigital number, since it uses as much as digits as its factorization.

10532556799981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708000, while the sum is 70.

The spelling of 10532556799981 in words is "ten trillion, five hundred thirty-two billion, five hundred fifty-six million, seven hundred ninety-nine thousand, nine hundred eighty-one".