20675341319391 has 12 divisors (see below), whose sum is σ = 32579325715560. Its totient is φ = 12530509890480.

The previous prime is 20675341319389. The next prime is 20675341319411. The reversal of 20675341319391 is 19391314357602.

20675341319391 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 53 + 413 + 1 + 93 + 91 = 666.

It is not a de Polignac number, because 20675341319391 - 2¹ = 20675341319389 is a prime.

It is a super-2 number, since 2×20675341319391² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675341319351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104420915656 + ... + 104420915853.

It is an arithmetic number, because the mean of its divisors is an integer number (2714943809630).

Almost surely, 2^{20675341319391} is an apocalyptic number.

20675341319391 is a deficient number, since it is larger than the sum of its proper divisors (11903984396169).

20675341319391 is a wasteful number, since it uses less digits than its factorization.

20675341319391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208841831526 (or 208841831523 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 20675341319391 in words is "twenty trillion, six hundred seventy-five billion, three hundred forty-one million, three hundred nineteen thousand, three hundred ninety-one".