208325612133 has 6 divisors (see below), whose sum is σ = 300914773094. Its totient is φ = 138883741416.

The previous prime is 208325612087. The next prime is 208325612137. The reversal of 208325612133 is 331216523802.

208325612133 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 2 + 5 + 612 + 1 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140307928929 + 68017683204 = 374577^2 + 260802^2 .

It is not a de Polignac number, because 208325612133 - 2⁶ = 208325612069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208325612137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11573645110 + ... + 11573645127.

Almost surely, 2^208325612133 is an apocalyptic number.

It is an amenable number.

208325612133 is a deficient number, since it is larger than the sum of its proper divisors (92589160961).

208325612133 is a wasteful number, since it uses less digits than its factorization.

208325612133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23147290243 (or 23147290240 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 208325612133 in words is "two hundred eight billion, three hundred twenty-five million, six hundred twelve thousand, one hundred thirty-three".