10069111681 has 2 divisors, whose sum is σ = 10069111682. Its totient is φ = 10069111680.

The previous prime is 10069111673. The next prime is 10069111691. The reversal of 10069111681 is 18611196001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5445111681 + 4624000000 = 73791^2 + 68000^2 .

It is an emirp because it is prime and its reverse (18611196001) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 18911169001 and 10096111981.

It is a cyclic number.

It is not a de Polignac number, because 10069111681 - 2³ = 10069111673 is a prime.

It is a super-2 number, since 2×10069111681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10069111621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034555840 + 5034555841.

It is an arithmetic number, because the mean of its divisors is an integer number (5034555841).

Almost surely, 2^10069111681 is an apocalyptic number.

It is an amenable number.

10069111681 is a deficient number, since it is larger than the sum of its proper divisors (1).

10069111681 is an equidigital number, since it uses as much as digits as its factorization.

10069111681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 10069111681 in words is "ten billion, sixty-nine million, one hundred eleven thousand, six hundred eighty-one".