133065238220 has 24 divisors (see below), whose sum is σ = 291586436064. Its totient is φ = 50911917056.

The previous prime is 133065238171. The next prime is 133065238237. The reversal of 133065238220 is 22832560331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144635669 + ... + 144636588.

It is an arithmetic number, because the mean of its divisors is an integer number (12149434836).

Almost surely, 2^133065238220 is an apocalyptic number.

133065238220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133065238220 is an abundant number, since it is smaller than the sum of its proper divisors (158521197844).

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

133065238220 is a wasteful number, since it uses less digits than its factorization.

133065238220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289272289 (or 289272287 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 133065238220 its reverse (22832560331), we get a palindrome (155897798551).

The spelling of 133065238220 in words is "one hundred thirty-three billion, sixty-five million, two hundred thirty-eight thousand, two hundred twenty".