133100449656 has 128 divisors (see below), whose sum is σ = 365744332800. Its totient is φ = 40176639360.

The previous prime is 133100449639. The next prime is 133100449681. The reversal of 133100449656 is 656944001331.

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 31 ways as a sum of consecutive naturals, for example, 19367901 + ... + 19374771.

It is an arithmetic number, because the mean of its divisors is an integer number (2857377600).

Almost surely, 2^133100449656 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 133100449656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182872166400).

133100449656 is an abundant number, since it is smaller than the sum of its proper divisors (232643883144).

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

133100449656 is a wasteful number, since it uses less digits than its factorization.

133100449656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8769 (or 8765 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 133100449656 in words is "one hundred thirty-three billion, one hundred million, four hundred forty-nine thousand, six hundred fifty-six".