11591330620 has 12 divisors (see below), whose sum is σ = 24341794344. Its totient is φ = 4636532240.

The previous prime is 11591330599. The next prime is 11591330633. The reversal of 11591330620 is 2603319511.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 289783246 + ... + 289783285.

It is an arithmetic number, because the mean of its divisors is an integer number (2028482862).

Almost surely, 2^11591330620 is an apocalyptic number.

11591330620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11591330620 is an abundant number, since it is smaller than the sum of its proper divisors (12750463724).

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

11591330620 is a wasteful number, since it uses less digits than its factorization.

11591330620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579566540 (or 579566538 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 11591330620 in words is "eleven billion, five hundred ninety-one million, three hundred thirty thousand, six hundred twenty".