133856531163 has 24 divisors (see below), whose sum is σ = 206675632800. Its totient is φ = 83275885440.

The previous prime is 133856531161. The next prime is 133856531167. The reversal of 133856531163 is 361135658331.

133856531163 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 56 + 531 + 1 + 63 = 666.

It is not a de Polignac number, because 133856531163 - 2¹ = 133856531161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133856531161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7877488 + ... + 7894461.

It is an arithmetic number, because the mean of its divisors is an integer number (8611484700).

Almost surely, 2^133856531163 is an apocalyptic number.

133856531163 is a deficient number, since it is larger than the sum of its proper divisors (72819101637).

133856531163 is a wasteful number, since it uses less digits than its factorization.

133856531163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15772019 (or 15772016 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The spelling of 133856531163 in words is "one hundred thirty-three billion, eight hundred fifty-six million, five hundred thirty-one thousand, one hundred sixty-three".