11598359640 has 128 divisors (see below), whose sum is σ = 39792798720. Its totient is φ = 2649254400.

The previous prime is 11598359629. The next prime is 11598359687. The reversal of 11598359640 is 4695389511.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1534270 + ... + 1541810.

It is an arithmetic number, because the mean of its divisors is an integer number (310881240).

Almost surely, 2^11598359640 is an apocalyptic number.

11598359640 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 11598359640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19896399360).

11598359640 is an abundant number, since it is smaller than the sum of its proper divisors (28194439080).

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

11598359640 is a wasteful number, since it uses less digits than its factorization.

11598359640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393 (or 9389 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 11598359640 in words is "eleven billion, five hundred ninety-eight million, three hundred fifty-nine thousand, six hundred forty".