10644605465 has 8 divisors (see below), whose sum is σ = 13756105608. Its totient is φ = 7860631680.

The previous prime is 10644605431. The next prime is 10644605473. The reversal of 10644605465 is 56450644601.

It can be written as a sum of positive squares in 4 ways, for example, as 99780121 + 10544825344 = 9989^2 + 102688^2 .

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

It is not a de Polignac number, because 10644605465 - 2⁶ = 10644605401 is a prime.

It is a super-2 number, since 2×10644605465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 81881516 + ... + 81881645.

It is an arithmetic number, because the mean of its divisors is an integer number (1719513201).

Almost surely, 2^10644605465 is an apocalyptic number.

It is an amenable number.

10644605465 is a deficient number, since it is larger than the sum of its proper divisors (3111500143).

10644605465 is a wasteful number, since it uses less digits than its factorization.

10644605465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163763179.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 10644605465 in words is "ten billion, six hundred forty-four million, six hundred five thousand, four hundred sixty-five".