10668533917 has 2 divisors, whose sum is σ = 10668533918. Its totient is φ = 10668533916.

The previous prime is 10668533903. The next prime is 10668533921. The reversal of 10668533917 is 71933586601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7447517401 + 3221016516 = 86299^2 + 56754^2 .

It is a cyclic number.

It is not a de Polignac number, because 10668533917 - 2⁷ = 10668533789 is a prime.

It is a super-2 number, since 2×10668533917² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10668533947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5334266958 + 5334266959.

It is an arithmetic number, because the mean of its divisors is an integer number (5334266959).

Almost surely, 2^10668533917 is an apocalyptic number.

It is an amenable number.

10668533917 is a deficient number, since it is larger than the sum of its proper divisors (1).

10668533917 is an equidigital number, since it uses as much as digits as its factorization.

10668533917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 10668533917 in words is "ten billion, six hundred sixty-eight million, five hundred thirty-three thousand, nine hundred seventeen".