133642442642642 has 16 divisors (see below), whose sum is σ = 200496503011200. Its totient is φ = 66810275761248.

The previous prime is 133642442642617. The next prime is 133642442642689. The reversal of 133642442642642 is 246246244246331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365944118 + ... + 366309134.

It is an arithmetic number, because the mean of its divisors is an integer number (12531031438200).

Almost surely, 2^{133642442642642} is an apocalyptic number.

133642442642642 is a deficient number, since it is larger than the sum of its proper divisors (66854060368558).

133642442642642 is a wasteful number, since it uses less digits than its factorization.

133642442642642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394505.

The product of its digits is 31850496, while the sum is 53.

Adding to 133642442642642 its reverse (246246244246331), we get a palindrome (379888686888973).

The spelling of 133642442642642 in words is "one hundred thirty-three trillion, six hundred forty-two billion, four hundred forty-two million, six hundred forty-two thousand, six hundred forty-two".