11540564620 has 24 divisors (see below), whose sum is σ = 26099431344. Its totient is φ = 4261131456.

The previous prime is 11540564593. The next prime is 11540564639. The reversal of 11540564620 is 2646504511.

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 7 ways as a sum of consecutive naturals, for example, 22193134 + ... + 22193653.

It is an arithmetic number, because the mean of its divisors is an integer number (1087476306).

Almost surely, 2^11540564620 is an apocalyptic number.

11540564620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11540564620 is an abundant number, since it is smaller than the sum of its proper divisors (14558866724).

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

11540564620 is a wasteful number, since it uses less digits than its factorization.

11540564620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44386809 (or 44386807 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 11540564620 in words is "eleven billion, five hundred forty million, five hundred sixty-four thousand, six hundred twenty".