133838553642 has 8 divisors (see below), whose sum is σ = 267677107296. Its totient is φ = 44612851212.

The previous prime is 133838553601. The next prime is 133838553661. The reversal of 133838553642 is 246355838331.

It is a sphenic number, since it is the product of 3 distinct primes.

133838553642 is an admirable number.

It is a super-2 number, since 2×133838553642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11153212798 + ... + 11153212809.

It is an arithmetic number, because the mean of its divisors is an integer number (33459638412).

Almost surely, 2^133838553642 is an apocalyptic number.

133838553642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133838553642 is a wasteful number, since it uses less digits than its factorization.

133838553642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22306425612.

The product of its digits is 6220800, while the sum is 51.

The spelling of 133838553642 in words is "one hundred thirty-three billion, eight hundred thirty-eight million, five hundred fifty-three thousand, six hundred forty-two".