133520676165 has 12 divisors (see below), whose sum is σ = 231435838764. Its totient is φ = 71211027264.

The previous prime is 133520676161. The next prime is 133520676187. The reversal of 133520676165 is 561676025331.

133520676165 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 20 + 6 + 7 + 616 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54121834881 + 79398841284 = 232641^2 + 281778^2 .

It is not a de Polignac number, because 133520676165 - 2² = 133520676161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2967126137 = 133520676165 / (1 + 3 + 3 + 5 + 2 + 0 + 6 + 7 + 6 + 1 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 133520676165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133520676161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1483563024 + ... + 1483563113.

It is an arithmetic number, because the mean of its divisors is an integer number (19286319897).

Almost surely, 2^133520676165 is an apocalyptic number.

133520676165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133520676165 is a deficient number, since it is larger than the sum of its proper divisors (97915162599).

133520676165 is a wasteful number, since it uses less digits than its factorization.

133520676165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967126148 (or 2967126145 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 133520676165 in words is "one hundred thirty-three billion, five hundred twenty million, six hundred seventy-six thousand, one hundred sixty-five".