11590136550 has 144 divisors (see below), whose sum is σ = 31953579840. Its totient is φ = 3010475520.

The previous prime is 11590136539. The next prime is 11590136561. The reversal of 11590136550 is 5563109511.

11590136550 is a `hidden beast` number, since 1 + 1 + 5 + 90 + 13 + 6 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (11590136539) and next prime (11590136561).

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 71 ways as a sum of consecutive naturals, for example, 4842154 + ... + 4844546.

It is an arithmetic number, because the mean of its divisors is an integer number (221899860).

Almost surely, 2^11590136550 is an apocalyptic number.

11590136550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11590136550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15976789920).

11590136550 is an abundant number, since it is smaller than the sum of its proper divisors (20363443290).

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

11590136550 is a wasteful number, since it uses less digits than its factorization.

11590136550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 36.

The spelling of 11590136550 in words is "eleven billion, five hundred ninety million, one hundred thirty-six thousand, five hundred fifty".