11556465510 has 64 divisors (see below), whose sum is σ = 28651714560. Its totient is φ = 2980074240.

The previous prime is 11556465491. The next prime is 11556465517. The reversal of 11556465510 is 1556465511.

11556465510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11556465517) 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, 1492509 + ... + 1500231.

It is an arithmetic number, because the mean of its divisors is an integer number (447683040).

Almost surely, 2^11556465510 is an apocalyptic number.

11556465510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11556465510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14325857280).

11556465510 is an abundant number, since it is smaller than the sum of its proper divisors (17095249050).

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

11556465510 is a wasteful number, since it uses less digits than its factorization.

11556465510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373.

The product of its (nonzero) digits is 90000, while the sum is 39.

Subtracting from 11556465510 its reverse (1556465511), we obtain a palindrome (9999999999).

The spelling of 11556465510 in words is "eleven billion, five hundred fifty-six million, four hundred sixty-five thousand, five hundred ten".