133550021404 has 48 divisors (see below), whose sum is σ = 251084056608. Its totient is φ = 61928368128.

The previous prime is 133550021401. The next prime is 133550021441. The reversal of 133550021404 is 404120055331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133550021401) by changing a digit.

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, 5562594 + ... + 5586550.

It is an arithmetic number, because the mean of its divisors is an integer number (5230917846).

Almost surely, 2^133550021404 is an apocalyptic number.

It is an amenable number.

133550021404 is a deficient number, since it is larger than the sum of its proper divisors (117534035204).

133550021404 is a wasteful number, since it uses less digits than its factorization.

133550021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25174 (or 25172 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 133550021404 its reverse (404120055331), we get a palindrome (537670076735).

The spelling of 133550021404 in words is "one hundred thirty-three billion, five hundred fifty million, twenty-one thousand, four hundred four".