11397199500544 has 576 divisors, whose sum is σ = 28921235196672. Its totient is φ = 4402800230400.

The previous prime is 11397199500509. The next prime is 11397199500553. The reversal of 11397199500544 is 44500599179311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6546351514 + ... + 6546353254.

It is an arithmetic number, because the mean of its divisors is an integer number (50210477772).

Almost surely, 2^{11397199500544} 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 11397199500544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14460617598336).

11397199500544 is an abundant number, since it is smaller than the sum of its proper divisors (17524035696128).

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

11397199500544 is a wasteful number, since it uses less digits than its factorization.

11397199500544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 58.

The spelling of 11397199500544 in words is "eleven trillion, three hundred ninety-seven billion, one hundred ninety-nine million, five hundred thousand, five hundred forty-four".