2633989166881 has 2 divisors, whose sum is σ = 2633989166882. Its totient is φ = 2633989166880.

The previous prime is 2633989166857. The next prime is 2633989166899. The reversal of 2633989166881 is 1886619893362.

2633989166881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2228201056656 + 405788110225 = 1492716^2 + 637015^2 .

It is a cyclic number.

It is not a de Polignac number, because 2633989166881 - 2²⁷ = 2633854949153 is a prime.

It is a super-2 number, since 2×2633989166881² (a number of 26 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 2633989166881.

It is not a weakly prime, because it can be changed into another prime (2633989166681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1316994583440 + 1316994583441.

It is an arithmetic number, because the mean of its divisors is an integer number (1316994583441).

Almost surely, 2^{2633989166881} is an apocalyptic number.

It is an amenable number.

2633989166881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2633989166881 is an equidigital number, since it uses as much as digits as its factorization.

2633989166881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161243136, while the sum is 70.

The spelling of 2633989166881 in words is "two trillion, six hundred thirty-three billion, nine hundred eighty-nine million, one hundred sixty-six thousand, eight hundred eighty-one".