10644565153 has 4 divisors (see below), whose sum is σ = 10790381188. Its totient is φ = 10498749120.

The previous prime is 10644565097. The next prime is 10644565171. The reversal of 10644565153 is 35156544601.

It is a happy number.

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 6787782544 + 3856782609 = 82388^2 + 62103^2 .

It is a cyclic number.

It is not a de Polignac number, because 10644565153 - 2⁹ = 10644564641 is a prime.

It is a super-2 number, since 2×10644565153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10644565553) 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, 72907908 + ... + 72908053.

It is an arithmetic number, because the mean of its divisors is an integer number (2697595297).

Almost surely, 2^10644565153 is an apocalyptic number.

It is an amenable number.

10644565153 is a deficient number, since it is larger than the sum of its proper divisors (145816035).

10644565153 is an equidigital number, since it uses as much as digits as its factorization.

10644565153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145816034.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 10644565153 in words is "ten billion, six hundred forty-four million, five hundred sixty-five thousand, one hundred fifty-three".