10005666613 has 4 divisors (see below), whose sum is σ = 10006063648. Its totient is φ = 10005269580.

The previous prime is 10005666611. The next prime is 10005666617. The reversal of 10005666613 is 31666650001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10005666613 - 2¹ = 10005666611 is a prime.

It is a super-2 number, since 2×10005666613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10005666611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157953 + ... + 212038.

It is an arithmetic number, because the mean of its divisors is an integer number (2501515912).

Almost surely, 2^10005666613 is an apocalyptic number.

It is an amenable number.

10005666613 is a deficient number, since it is larger than the sum of its proper divisors (397035).

10005666613 is an equidigital number, since it uses as much as digits as its factorization.

10005666613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397034.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 10005666613 in words is "ten billion, five million, six hundred sixty-six thousand, six hundred thirteen".