10068619661 has 2 divisors, whose sum is σ = 10068619662. Its totient is φ = 10068619660.

The previous prime is 10068619651. The next prime is 10068619723. The reversal of 10068619661 is 16691686001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8411641225 + 1656978436 = 91715^2 + 40706^2 .

It is an emirp because it is prime and its reverse (16691686001) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 19961989001 and 10098916991.

It is a cyclic number.

It is not a de Polignac number, because 10068619661 - 2²⁶ = 10001510797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10068619601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034309830 + 5034309831.

It is an arithmetic number, because the mean of its divisors is an integer number (5034309831).

Almost surely, 2^10068619661 is an apocalyptic number.

It is an amenable number.

10068619661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10068619661 is an equidigital number, since it uses as much as digits as its factorization.

10068619661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 10068619661 in words is "ten billion, sixty-eight million, six hundred nineteen thousand, six hundred sixty-one".