133020540433566 has 24 divisors (see below), whose sum is σ = 288639419362320. Its totient is φ = 44274295771776.

The previous prime is 133020540433559. The next prime is 133020540433577. The reversal of 133020540433566 is 665334045020331.

133020540433566 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 2 + 0 + 5 + 40 + 43 + 3 + 566 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5490351946 + ... + 5490376173.

It is an arithmetic number, because the mean of its divisors is an integer number (12026642473430).

Almost surely, 2^{133020540433566} is an apocalyptic number.

133020540433566 is an abundant number, since it is smaller than the sum of its proper divisors (155618878928754).

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

133020540433566 is a wasteful number, since it uses less digits than its factorization.

133020540433566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980728800 (or 10980728797 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 45.

Adding to 133020540433566 its reverse (665334045020331), we get a palindrome (798354585453897).

The spelling of 133020540433566 in words is "one hundred thirty-three trillion, twenty billion, five hundred forty million, four hundred thirty-three thousand, five hundred sixty-six".