133641320601 has 32 divisors (see below), whose sum is σ = 190758481920. Its totient is φ = 82929401856.

The previous prime is 133641320599. The next prime is 133641320621. The reversal of 133641320601 is 106023146331.

It is not a de Polignac number, because 133641320601 - 2¹ = 133641320599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133641320621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2020665 + ... + 2085753.

It is an arithmetic number, because the mean of its divisors is an integer number (5961202560).

Almost surely, 2^133641320601 is an apocalyptic number.

It is an amenable number.

133641320601 is a deficient number, since it is larger than the sum of its proper divisors (57117161319).

133641320601 is a wasteful number, since it uses less digits than its factorization.

133641320601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65553.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 133641320601 its reverse (106023146331), we get a palindrome (239664466932).

The spelling of 133641320601 in words is "one hundred thirty-three billion, six hundred forty-one million, three hundred twenty thousand, six hundred one".