133268553600 has 2304 divisors, whose sum is σ = 613660723200. Its totient is φ = 25082265600.

The previous prime is 133268553571. The next prime is 133268553641. The reversal of 133268553600 is 6355862331.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3601852782 + ... + 3601852818.

It is an arithmetic number, because the mean of its divisors is an integer number (266345800).

Almost surely, 2^133268553600 is an apocalyptic number.

133268553600 is a gapful number since it is divisible by the number (10) 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 133268553600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306830361600).

133268553600 is an abundant number, since it is smaller than the sum of its proper divisors (480392169600).

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

133268553600 is a wasteful number, since it uses less digits than its factorization.

133268553600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 133268553600 in words is "one hundred thirty-three billion, two hundred sixty-eight million, five hundred fifty-three thousand, six hundred".