133623202161 has 8 divisors (see below), whose sum is σ = 178903541344. Its totient is φ = 88712498880.

The previous prime is 133623202151. The next prime is 133623202247. The reversal of 133623202161 is 161202326331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133623202161 - 2¹⁰ = 133623201137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133623202151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92408131 + ... + 92409576.

It is an arithmetic number, because the mean of its divisors is an integer number (22362942668).

Almost surely, 2^133623202161 is an apocalyptic number.

It is an amenable number.

133623202161 is a deficient number, since it is larger than the sum of its proper divisors (45280339183).

133623202161 is a wasteful number, since it uses less digits than its factorization.

133623202161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184817951.

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

Adding to 133623202161 its reverse (161202326331), we get a palindrome (294825528492).

The spelling of 133623202161 in words is "one hundred thirty-three billion, six hundred twenty-three million, two hundred two thousand, one hundred sixty-one".