10066051661 has 2 divisors, whose sum is σ = 10066051662. Its totient is φ = 10066051660.

The previous prime is 10066051651. The next prime is 10066051663. The reversal of 10066051661 is 16615066001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5684406025 + 4381645636 = 75395^2 + 66194^2 .

It is a cyclic number.

It is not a de Polignac number, because 10066051661 - 2¹⁴ = 10066035277 is a prime.

Together with 10066051663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10066051663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033025830 + 5033025831.

It is an arithmetic number, because the mean of its divisors is an integer number (5033025831).

Almost surely, 2^10066051661 is an apocalyptic number.

It is an amenable number.

10066051661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10066051661 is an equidigital number, since it uses as much as digits as its factorization.

10066051661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 10066051661 in words is "ten billion, sixty-six million, fifty-one thousand, six hundred sixty-one".