11530420616 has 64 divisors (see below), whose sum is σ = 25531269120. Its totient is φ = 4812779520.

The previous prime is 11530420613. The next prime is 11530420703. The reversal of 11530420616 is 61602403511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11530420613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194681 + ... + 246903.

It is an arithmetic number, because the mean of its divisors is an integer number (398926080).

Almost surely, 2^11530420616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11530420616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12765634560).

11530420616 is an abundant number, since it is smaller than the sum of its proper divisors (14000848504).

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

11530420616 is a wasteful number, since it uses less digits than its factorization.

11530420616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52446 (or 52442 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 11530420616 in words is "eleven billion, five hundred thirty million, four hundred twenty thousand, six hundred sixteen".