20710606913 has 2 divisors, whose sum is σ = 20710606914. Its totient is φ = 20710606912.

The previous prime is 20710606909. The next prime is 20710606981. The reversal of 20710606913 is 31960601702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14464391824 + 6246215089 = 120268^2 + 79033^2 .

It is a cyclic number.

It is not a de Polignac number, because 20710606913 - 2² = 20710606909 is a prime.

It is not a weakly prime, because it can be changed into another prime (20710603913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355303456 + 10355303457.

It is an arithmetic number, because the mean of its divisors is an integer number (10355303457).

Almost surely, 2^20710606913 is an apocalyptic number.

It is an amenable number.

20710606913 is a deficient number, since it is larger than the sum of its proper divisors (1).

20710606913 is an equidigital number, since it uses as much as digits as its factorization.

20710606913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 20710606913 in words is "twenty billion, seven hundred ten million, six hundred six thousand, nine hundred thirteen".