10321824661 has 4 divisors (see below), whose sum is σ = 10573576524. Its totient is φ = 10070072800.

The previous prime is 10321824649. The next prime is 10321824673. The reversal of 10321824661 is 16642812301.

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

It is an interprime number because it is at equal distance from previous prime (10321824649) and next prime (10321824673).

It can be written as a sum of positive squares in 2 ways, for example, as 3214323025 + 7107501636 = 56695^2 + 84306^2 .

It is a cyclic number.

It is not a de Polignac number, because 10321824661 - 2²⁹ = 9784953749 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 (10321822661) 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, 125875870 + ... + 125875951.

It is an arithmetic number, because the mean of its divisors is an integer number (2643394131).

Almost surely, 2^10321824661 is an apocalyptic number.

It is an amenable number.

10321824661 is a deficient number, since it is larger than the sum of its proper divisors (251751863).

10321824661 is an equidigital number, since it uses as much as digits as its factorization.

10321824661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251751862.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 10321824661 in words is "ten billion, three hundred twenty-one million, eight hundred twenty-four thousand, six hundred sixty-one".