20966530711 has 16 divisors (see below), whose sum is σ = 24203739136. Its totient is φ = 17790446016.

The previous prime is 20966530699. The next prime is 20966530727. The reversal of 20966530711 is 11703566902.

It is not a de Polignac number, because 20966530711 - 2⁷ = 20966530583 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 (20966530411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380470 + ... + 432076.

It is an arithmetic number, because the mean of its divisors is an integer number (1512733696).

Almost surely, 2^20966530711 is an apocalyptic number.

20966530711 is a deficient number, since it is larger than the sum of its proper divisors (3237208425).

20966530711 is a wasteful number, since it uses less digits than its factorization.

20966530711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52198.

The product of its (nonzero) digits is 68040, while the sum is 40.

It can be divided in two parts, 20966530 and 711, that added together give a square (20967241 = 4579²).

The spelling of 20966530711 in words is "twenty billion, nine hundred sixty-six million, five hundred thirty thousand, seven hundred eleven".