133895661144456 has 16 divisors (see below), whose sum is σ = 334739152861200. Its totient is φ = 44631887048144.

The previous prime is 133895661144451. The next prime is 133895661144457. The reversal of 133895661144456 is 654441166598331.

It is not an unprimeable number, because it can be changed into a prime (133895661144451) 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, 2789492940486 + ... + 2789492940533.

It is an arithmetic number, because the mean of its divisors is an integer number (20921197053825).

Almost surely, 2^{133895661144456} is an apocalyptic number.

It is an amenable number.

133895661144456 is an abundant number, since it is smaller than the sum of its proper divisors (200843491716744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133895661144456 is a wasteful number, since it uses less digits than its factorization.

133895661144456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578985881028 (or 5578985881024 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 66.

The spelling of 133895661144456 in words is "one hundred thirty-three trillion, eight hundred ninety-five billion, six hundred sixty-one million, one hundred forty-four thousand, four hundred fifty-six".