11557335620 has 24 divisors (see below), whose sum is σ = 24272435544. Its totient is φ = 4622547456.

The previous prime is 11557335571. The next prime is 11557335631. The reversal of 11557335620 is 2653375511.

11557335620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5822605636 + 5734729984 = 76306^2 + 75728^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418892 + ... + 445628.

It is an arithmetic number, because the mean of its divisors is an integer number (1011351481).

Almost surely, 2^11557335620 is an apocalyptic number.

11557335620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11557335620 is an abundant number, since it is smaller than the sum of its proper divisors (12715099924).

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

11557335620 is a wasteful number, since it uses less digits than its factorization.

11557335620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48359 (or 48357 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 11557335620 in words is "eleven billion, five hundred fifty-seven million, three hundred thirty-five thousand, six hundred twenty".