133456564013291 has 4 divisors (see below), whose sum is σ = 133467207343800. Its totient is φ = 133445920682784.

The previous prime is 133456564013287. The next prime is 133456564013369. The reversal of 133456564013291 is 192310465654331.

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 133456564013291 - 2² = 133456564013287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133456564010291) 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, 5321646446 + ... + 5321671523.

It is an arithmetic number, because the mean of its divisors is an integer number (33366801835950).

Almost surely, 2^{133456564013291} is an apocalyptic number.

133456564013291 is a deficient number, since it is larger than the sum of its proper divisors (10643330509).

133456564013291 is a wasteful number, since it uses less digits than its factorization.

133456564013291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10643330508.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 133456564013291 in words is "one hundred thirty-three trillion, four hundred fifty-six billion, five hundred sixty-four million, thirteen thousand, two hundred ninety-one".