20701075589 has 2 divisors, whose sum is σ = 20701075590. Its totient is φ = 20701075588.

The previous prime is 20701075583. The next prime is 20701075613. The reversal of 20701075589 is 98557010702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14239648900 + 6461426689 = 119330^2 + 80383^2 .

It is a cyclic number.

It is not a de Polignac number, because 20701075589 - 2¹² = 20701071493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20701075583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10350537794 + 10350537795.

It is an arithmetic number, because the mean of its divisors is an integer number (10350537795).

Almost surely, 2^20701075589 is an apocalyptic number.

It is an amenable number.

20701075589 is a deficient number, since it is larger than the sum of its proper divisors (1).

20701075589 is an equidigital number, since it uses as much as digits as its factorization.

20701075589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 20701075589 in words is "twenty billion, seven hundred one million, seventy-five thousand, five hundred eighty-nine".