11605458840 has 192 divisors, whose sum is σ = 36261341280. Its totient is φ = 2971238400.

The previous prime is 11605458773. The next prime is 11605458877. The reversal of 11605458840 is 4885450611.

It is a junction number, because it is equal to n+sod(n) for n = 11605458792 and 11605458801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18104920 + ... + 18105560.

Almost surely, 2^11605458840 is an apocalyptic number.

11605458840 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 11605458840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18130670640).

11605458840 is an abundant number, since it is smaller than the sum of its proper divisors (24655882440).

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

11605458840 is a wasteful number, since it uses less digits than its factorization.

11605458840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 11605458840 in words is "eleven billion, six hundred five million, four hundred fifty-eight thousand, eight hundred forty".