133464543636631 has 4 divisors (see below), whose sum is σ = 133470328608064. Its totient is φ = 133458758665200.

The previous prime is 133464543636607. The next prime is 133464543636649. The reversal of 133464543636631 is 136636345464331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133464543636631 - 2⁷ = 133464543636503 is a prime.

It is a super-2 number, since 2×133464543636631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133464543637631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892451110 + ... + 2892497251.

It is an arithmetic number, because the mean of its divisors is an integer number (33367582152016).

Almost surely, 2^{133464543636631} is an apocalyptic number.

133464543636631 is a deficient number, since it is larger than the sum of its proper divisors (5784971433).

133464543636631 is an equidigital number, since it uses as much as digits as its factorization.

133464543636631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784971432.

The product of its digits is 100776960, while the sum is 58.

The spelling of 133464543636631 in words is "one hundred thirty-three trillion, four hundred sixty-four billion, five hundred forty-three million, six hundred thirty-six thousand, six hundred thirty-one".