133526222666550 has 576 divisors, whose sum is σ = 416166766479360. Its totient is φ = 30063957719040.

The previous prime is 133526222666549. The next prime is 133526222666587. The reversal of 133526222666550 is 55666222625331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 85648634671 + ... + 85648636229.

It is an arithmetic number, because the mean of its divisors is an integer number (722511747360).

Almost surely, 2^{133526222666550} is an apocalyptic number.

133526222666550 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 133526222666550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208083383239680).

133526222666550 is an abundant number, since it is smaller than the sum of its proper divisors (282640543812810).

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

133526222666550 is a wasteful number, since it uses less digits than its factorization.

133526222666550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 54.

The spelling of 133526222666550 in words is "one hundred thirty-three trillion, five hundred twenty-six billion, two hundred twenty-two million, six hundred sixty-six thousand, five hundred fifty".