133944597120 has 128 divisors (see below), whose sum is σ = 427070931840. Its totient is φ = 35708309504.

The previous prime is 133944597107. The next prime is 133944597211. The reversal of 133944597120 is 21795449331.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×133944597120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 133944597120.

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 15 ways as a sum of consecutive naturals, for example, 8618797 + ... + 8634323.

It is an arithmetic number, because the mean of its divisors is an integer number (3336491655).

Almost surely, 2^133944597120 is an apocalyptic number.

133944597120 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 133944597120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213535465920).

133944597120 is an abundant number, since it is smaller than the sum of its proper divisors (293126334720).

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

133944597120 is a wasteful number, since it uses less digits than its factorization.

133944597120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20042 (or 20030 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 133944597120 in words is "one hundred thirty-three billion, nine hundred forty-four million, five hundred ninety-seven thousand, one hundred twenty".