10689330645 has 168 divisors, whose sum is σ = 22639186584. Its totient is φ = 4828336128.

The previous prime is 10689330623. The next prime is 10689330677. The reversal of 10689330645 is 54603398601.

It can be written as a sum of positive squares in 4 ways, for example, as 1285956 + 10688044689 = 1134^2 + 103383^2 .

It is not a de Polignac number, because 10689330645 - 2⁶ = 10689330581 is a prime.

It is a super-2 number, since 2×10689330645² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10689330645.

It is a congruent number.

It is an unprimeable number.

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 167 ways as a sum of consecutive naturals, for example, 17324377 + ... + 17324993.

It is an arithmetic number, because the mean of its divisors is an integer number (134757063).

Almost surely, 2^10689330645 is an apocalyptic number.

10689330645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10689330645 is an abundant number, since it is smaller than the sum of its proper divisors (11949855939).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10689330645 is an frugal number, since it uses more digits than its factorization.

10689330645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 10689330645 in words is "ten billion, six hundred eighty-nine million, three hundred thirty thousand, six hundred forty-five".