10661500589 has 2 divisors, whose sum is σ = 10661500590. Its totient is φ = 10661500588.

The previous prime is 10661500573. The next prime is 10661500673. The reversal of 10661500589 is 98500516601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7090482025 + 3571018564 = 84205^2 + 59758^2 .

It is a cyclic number.

It is not a de Polignac number, because 10661500589 - 2⁴ = 10661500573 is a prime.

It is a super-2 number, since 2×10661500589² (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 (10661500189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330750294 + 5330750295.

It is an arithmetic number, because the mean of its divisors is an integer number (5330750295).

Almost surely, 2^10661500589 is an apocalyptic number.

It is an amenable number.

10661500589 is a deficient number, since it is larger than the sum of its proper divisors (1).

10661500589 is an equidigital number, since it uses as much as digits as its factorization.

10661500589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 10661500589 in words is "ten billion, six hundred sixty-one million, five hundred thousand, five hundred eighty-nine".