11026400221650 has 192 divisors, whose sum is σ = 30721076582400. Its totient is φ = 2594495904000.

The previous prime is 11026400221607. The next prime is 11026400221673. The reversal of 11026400221650 is 5612200462011.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6973780 + ... + 8407520.

It is an arithmetic number, because the mean of its divisors is an integer number (160005607200).

Almost surely, 2^{11026400221650} is an apocalyptic number.

11026400221650 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 11026400221650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15360538291200).

11026400221650 is an abundant number, since it is smaller than the sum of its proper divisors (19694676360750).

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

11026400221650 is a wasteful number, since it uses less digits than its factorization.

11026400221650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433905 (or 1433900 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 11026400221650 its reverse (5612200462011), we get a palindrome (16638600683661).

The spelling of 11026400221650 in words is "eleven trillion, twenty-six billion, four hundred million, two hundred twenty-one thousand, six hundred fifty".