20577743171 has 8 divisors (see below), whose sum is σ = 20600631984. Its totient is φ = 20554871040.

The previous prime is 20577743159. The next prime is 20577743227. The reversal of 20577743171 is 17134777502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20577743171 - 2¹⁴ = 20577726787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20577743101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6394955 + ... + 6398171.

It is an arithmetic number, because the mean of its divisors is an integer number (2575078998).

Almost surely, 2^20577743171 is an apocalyptic number.

20577743171 is a deficient number, since it is larger than the sum of its proper divisors (22888813).

20577743171 is a wasteful number, since it uses less digits than its factorization.

20577743171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341.

The product of its (nonzero) digits is 288120, while the sum is 44.

It can be divided in two parts, 205777431 and 71, that added together give a palindrome (205777502).

The spelling of 20577743171 in words is "twenty billion, five hundred seventy-seven million, seven hundred forty-three thousand, one hundred seventy-one".