20675760143 has 4 divisors (see below), whose sum is σ = 20958989808. Its totient is φ = 20392530480.

The previous prime is 20675760113. The next prime is 20675760151. The reversal of 20675760143 is 34106757602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34106757602 = 2 ⋅17053378801.

It is a cyclic number.

It is not a de Polignac number, because 20675760143 - 2¹² = 20675756047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20675760143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675760113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141614723 + ... + 141614868.

It is an arithmetic number, because the mean of its divisors is an integer number (5239747452).

Almost surely, 2^20675760143 is an apocalyptic number.

20675760143 is a deficient number, since it is larger than the sum of its proper divisors (283229665).

20675760143 is an equidigital number, since it uses as much as digits as its factorization.

20675760143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283229664.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 20675760143 in words is "twenty billion, six hundred seventy-five million, seven hundred sixty thousand, one hundred forty-three".