10659783640 has 64 divisors (see below), whose sum is σ = 26257685760. Its totient is φ = 3862542720.

The previous prime is 10659783637. The next prime is 10659783647. The reversal of 10659783640 is 4638795601.

It is a super-2 number, since 2×10659783640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10659783647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81717 + ... + 167323.

It is an arithmetic number, because the mean of its divisors is an integer number (410276340).

Almost surely, 2^10659783640 is an apocalyptic number.

10659783640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10659783640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13128842880).

10659783640 is an abundant number, since it is smaller than the sum of its proper divisors (15597902120).

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

10659783640 is a wasteful number, since it uses less digits than its factorization.

10659783640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85912 (or 85908 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 10659783640 in words is "ten billion, six hundred fifty-nine million, seven hundred eighty-three thousand, six hundred forty".