10616991589 has 24 divisors (see below), whose sum is σ = 11893829400. Its totient is φ = 9443008512.

The previous prime is 10616991571. The next prime is 10616991599. The reversal of 10616991589 is 98519961601.

It can be written as a sum of positive squares in 4 ways, for example, as 6931894564 + 3685097025 = 83258^2 + 60705^2 .

It is not a de Polignac number, because 10616991589 - 2²³ = 10608602981 is a prime.

It is a super-2 number, since 2×10616991589² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10616991509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2753587 + ... + 2757439.

It is an arithmetic number, because the mean of its divisors is an integer number (495576225).

Almost surely, 2^10616991589 is an apocalyptic number.

10616991589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10616991589 is a deficient number, since it is larger than the sum of its proper divisors (1276837811).

10616991589 is a wasteful number, since it uses less digits than its factorization.

10616991589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4338 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 55.

The spelling of 10616991589 in words is "ten billion, six hundred sixteen million, nine hundred ninety-one thousand, five hundred eighty-nine".