20857327711 has 8 divisors (see below), whose sum is σ = 23139100800. Its totient is φ = 18639830040.

The previous prime is 20857327703. The next prime is 20857327741. The reversal of 20857327711 is 11772375802.

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 20857327711 - 2³ = 20857327703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20857327741) 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, 16068171 + ... + 16069468.

It is an arithmetic number, because the mean of its divisors is an integer number (2892387600).

Almost surely, 2^20857327711 is an apocalyptic number.

20857327711 is a deficient number, since it is larger than the sum of its proper divisors (2281773089).

20857327711 is a wasteful number, since it uses less digits than its factorization.

20857327711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32137709.

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 20857327711 in words is "twenty billion, eight hundred fifty-seven million, three hundred twenty-seven thousand, seven hundred eleven".