133155138372 has 24 divisors (see below), whose sum is σ = 310791633600. Its totient is φ = 44371287456.

The previous prime is 133155138371. The next prime is 133155138379. The reversal of 133155138372 is 273831551331.

It is not an unprimeable number, because it can be changed into a prime (133155138371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679472 + ... + 1756967.

It is an arithmetic number, because the mean of its divisors is an integer number (12949651400).

Almost surely, 2^133155138372 is an apocalyptic number.

133155138372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133155138372 is an abundant number, since it is smaller than the sum of its proper divisors (177636495228).

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

133155138372 is a wasteful number, since it uses less digits than its factorization.

133155138372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439675 (or 3439673 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The spelling of 133155138372 in words is "one hundred thirty-three billion, one hundred fifty-five million, one hundred thirty-eight thousand, three hundred seventy-two".