11649438060 has 96 divisors (see below), whose sum is σ = 35170726080. Its totient is φ = 2864028672.

The previous prime is 11649438043. The next prime is 11649438067. The reversal of 11649438060 is 6083494611.

11649438060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11649438060² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11649438067) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 656586 + ... + 674094.

It is an arithmetic number, because the mean of its divisors is an integer number (366361730).

Almost surely, 2^11649438060 is an apocalyptic number.

11649438060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11649438060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17585363040).

11649438060 is an abundant number, since it is smaller than the sum of its proper divisors (23521288020).

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

11649438060 is a wasteful number, since it uses less digits than its factorization.

11649438060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387 (or 18385 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 11649438060 in words is "eleven billion, six hundred forty-nine million, four hundred thirty-eight thousand, sixty".