133645203117 has 12 divisors (see below), whose sum is σ = 193066473600. Its totient is φ = 89086000968.

The previous prime is 133645203113. The next prime is 133645203119. The reversal of 133645203117 is 711302546331.

133645203117 is a `hidden beast` number, since 1 + 3 + 3 + 645 + 2 + 0 + 3 + 1 + 1 + 7 = 666.

It is not a de Polignac number, because 133645203117 - 2² = 133645203113 is a prime.

It is a super-2 number, since 2×133645203117² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133645203113) 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, 821367 + ... + 970532.

It is an arithmetic number, because the mean of its divisors is an integer number (16088872800).

Almost surely, 2^133645203117 is an apocalyptic number.

It is an amenable number.

133645203117 is a deficient number, since it is larger than the sum of its proper divisors (59421270483).

133645203117 is a wasteful number, since it uses less digits than its factorization.

133645203117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800192 (or 1800189 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 133645203117 its reverse (711302546331), we get a palindrome (844947749448).

The spelling of 133645203117 in words is "one hundred thirty-three billion, six hundred forty-five million, two hundred three thousand, one hundred seventeen".