133200601506661 has 16 divisors (see below), whose sum is σ = 144176348131200. Its totient is φ = 122329087852608.

The previous prime is 133200601506641. The next prime is 133200601506667. The reversal of 133200601506661 is 166605106002331.

It is not a de Polignac number, because 133200601506661 - 2¹³ = 133200601498469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133200601506667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 375057670 + ... + 375412648.

It is an arithmetic number, because the mean of its divisors is an integer number (9011021758200).

Almost surely, 2^{133200601506661} is an apocalyptic number.

It is an amenable number.

133200601506661 is a deficient number, since it is larger than the sum of its proper divisors (10975746624539).

133200601506661 is a wasteful number, since it uses less digits than its factorization.

133200601506661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501708.

The product of its (nonzero) digits is 116640, while the sum is 40.

Adding to 133200601506661 its reverse (166605106002331), we get a palindrome (299805707508992).

The spelling of 133200601506661 in words is "one hundred thirty-three trillion, two hundred billion, six hundred one million, five hundred six thousand, six hundred sixty-one".