10644120005 has 8 divisors (see below), whose sum is σ = 12773613600. Its totient is φ = 8514849616.

The previous prime is 10644119989. The next prime is 10644120023. The reversal of 10644120005 is 50002144601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10644120005 - 2⁴ = 10644119989 is a prime.

It is a super-2 number, since 2×10644120005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78506 + ... + 165684.

It is an arithmetic number, because the mean of its divisors is an integer number (1596701700).

Almost surely, 2^10644120005 is an apocalyptic number.

It is an amenable number.

10644120005 is a deficient number, since it is larger than the sum of its proper divisors (2129493595).

10644120005 is an equidigital number, since it uses as much as digits as its factorization.

10644120005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111603.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10644120005 its reverse (50002144601), we get a palindrome (60646264606).

The spelling of 10644120005 in words is "ten billion, six hundred forty-four million, one hundred twenty thousand, five".