133043661020 has 12 divisors (see below), whose sum is σ = 279391688184. Its totient is φ = 53217464400.

The previous prime is 133043661013. The next prime is 133043661041. The reversal of 133043661020 is 20166340331.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3326091506 + ... + 3326091545.

It is an arithmetic number, because the mean of its divisors is an integer number (23282640682).

Almost surely, 2^133043661020 is an apocalyptic number.

133043661020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133043661020 is an abundant number, since it is smaller than the sum of its proper divisors (146348027164).

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

133043661020 is a wasteful number, since it uses less digits than its factorization.

133043661020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652183060 (or 6652183058 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 133043661020 in words is "one hundred thirty-three billion, forty-three million, six hundred sixty-one thousand, twenty".