11211938390016 has 2688 divisors, whose sum is σ = 45784912158720. Its totient is φ = 2675441664000.

The previous prime is 11211938390011. The next prime is 11211938390053. The reversal of 11211938390016 is 61009383911211.

11211938390016 is a `hidden beast` number, since 1 + 1 + 211 + 9 + 38 + 390 + 0 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (2688).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211938390011) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 74251247541 + ... + 74251247691.

It is an arithmetic number, because the mean of its divisors is an integer number (17033077440).

Almost surely, 2^{11211938390016} is an apocalyptic number.

11211938390016 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 11211938390016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22892456079360).

11211938390016 is an abundant number, since it is smaller than the sum of its proper divisors (34572973768704).

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

11211938390016 is a wasteful number, since it uses less digits than its factorization.

11211938390016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 11211938390016 in words is "eleven trillion, two hundred eleven billion, nine hundred thirty-eight million, three hundred ninety thousand, sixteen".