10206600661 has 4 divisors (see below), whose sum is σ = 10215957024. Its totient is φ = 10197244300.

The previous prime is 10206600619. The next prime is 10206600737. The reversal of 10206600661 is 16600660201.

10206600661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10206600661 - 2¹³ = 10206592469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206600161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4676545 + ... + 4678726.

It is an arithmetic number, because the mean of its divisors is an integer number (2553989256).

Almost surely, 2^10206600661 is an apocalyptic number.

It is an amenable number.

10206600661 is a deficient number, since it is larger than the sum of its proper divisors (9356363).

10206600661 is an equidigital number, since it uses as much as digits as its factorization.

10206600661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356362.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 10206600661 in words is "ten billion, two hundred six million, six hundred thousand, six hundred sixty-one".