10224643661 has 4 divisors (see below), whose sum is σ = 10237473372. Its totient is φ = 10211813952.

The previous prime is 10224643643. The next prime is 10224643669. The reversal of 10224643661 is 16634642201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4340833225 + 5883810436 = 65885^2 + 76706^2 .

It is a cyclic number.

It is not a de Polignac number, because 10224643661 - 2¹⁴ = 10224627277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10224643669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413660 + ... + 6415253.

It is an arithmetic number, because the mean of its divisors is an integer number (2559368343).

Almost surely, 2^10224643661 is an apocalyptic number.

It is an amenable number.

10224643661 is a deficient number, since it is larger than the sum of its proper divisors (12829711).

10224643661 is an equidigital number, since it uses as much as digits as its factorization.

10224643661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12829710.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 10224643661 in words is "ten billion, two hundred twenty-four million, six hundred forty-three thousand, six hundred sixty-one".