20069070881 has 2 divisors, whose sum is σ = 20069070882. Its totient is φ = 20069070880.

The previous prime is 20069070869. The next prime is 20069070937. The reversal of 20069070881 is 18807096002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19679600656 + 389470225 = 140284^2 + 19735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20069070881 is a prime.

It is a super-2 number, since 2×20069070881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20069040881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10034535440 + 10034535441.

It is an arithmetic number, because the mean of its divisors is an integer number (10034535441).

Almost surely, 2^20069070881 is an apocalyptic number.

It is an amenable number.

20069070881 is a deficient number, since it is larger than the sum of its proper divisors (1).

20069070881 is an equidigital number, since it uses as much as digits as its factorization.

20069070881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 20069070881 in words is "twenty billion, sixty-nine million, seventy thousand, eight hundred eighty-one".