11603069856 has 480 divisors, whose sum is σ = 41176396800. Its totient is φ = 3200601600.

The previous prime is 11603069851. The next prime is 11603069873. The reversal of 11603069856 is 65896030611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11603069851) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27560526 + ... + 27560946.

It is an arithmetic number, because the mean of its divisors is an integer number (85784160).

Almost surely, 2^11603069856 is an apocalyptic number.

11603069856 is a gapful number since it is divisible by the number (16) 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 11603069856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20588198400).

11603069856 is an abundant number, since it is smaller than the sum of its proper divisors (29573326944).

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

11603069856 is an equidigital number, since it uses as much as digits as its factorization.

11603069856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 11603069856 in words is "eleven billion, six hundred three million, sixty-nine thousand, eight hundred fifty-six".