133225406865 has 24 divisors (see below), whose sum is σ = 231740046720. Its totient is φ = 70802470944.

The previous prime is 133225406857. The next prime is 133225406869. The reversal of 133225406865 is 568604522331.

133225406865 is a `hidden beast` number, since 1 + 3 + 3 + 22 + 540 + 6 + 86 + 5 = 666.

It is not a de Polignac number, because 133225406865 - 2³ = 133225406857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 133225406865.

It is not an unprimeable number, because it can be changed into a prime (133225406869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5217945 + ... + 5243414.

It is an arithmetic number, because the mean of its divisors is an integer number (9655835280).

Almost surely, 2^133225406865 is an apocalyptic number.

133225406865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133225406865 is a deficient number, since it is larger than the sum of its proper divisors (98514639855).

133225406865 is a wasteful number, since it uses less digits than its factorization.

133225406865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461653 (or 10461650 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 133225406865 in words is "one hundred thirty-three billion, two hundred twenty-five million, four hundred six thousand, eight hundred sixty-five".