20195813133207 has 24 divisors (see below), whose sum is σ = 29884107205680. Its totient is φ = 13135105134720.

The previous prime is 20195813133169. The next prime is 20195813133271. The reversal of 20195813133207 is 70233131859102.

20195813133207 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 5 + 8 + 1 + 313 + 320 + 7 = 666.

It is not a de Polignac number, because 20195813133207 - 2²⁷ = 20195678915479 is a prime.

It is a super-2 number, since 2×20195813133207² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20195813133007) 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, 12156213 + ... + 13717329.

It is an arithmetic number, because the mean of its divisors is an integer number (1245171133570).

Almost surely, 2^{20195813133207} is an apocalyptic number.

20195813133207 is a deficient number, since it is larger than the sum of its proper divisors (9688294072473).

20195813133207 is a wasteful number, since it uses less digits than its factorization.

20195813133207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596223 (or 1596220 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 20195813133207 in words is "twenty trillion, one hundred ninety-five billion, eight hundred thirteen million, one hundred thirty-three thousand, two hundred seven".