11311875623550 has 96 divisors (see below), whose sum is σ = 28353408122880. Its totient is φ = 2984293584000.

The previous prime is 11311875623519. The next prime is 11311875623563. The reversal of 11311875623550 is 5532657811311.

It is a self number, because there is not a number n which added to its sum of digits gives 11311875623550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19084959 + ... + 19668741.

It is an arithmetic number, because the mean of its divisors is an integer number (295348001280).

Almost surely, 2^{11311875623550} is an apocalyptic number.

11311875623550 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 11311875623550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14176704061440).

11311875623550 is an abundant number, since it is smaller than the sum of its proper divisors (17041532499330).

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

11311875623550 is a wasteful number, since it uses less digits than its factorization.

11311875623550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585178 (or 585173 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 48.

The spelling of 11311875623550 in words is "eleven trillion, three hundred eleven billion, eight hundred seventy-five million, six hundred twenty-three thousand, five hundred fifty".