10643505445 has 8 divisors (see below), whose sum is σ = 12779586936. Its totient is φ = 8509884096.

The previous prime is 10643505419. The next prime is 10643505487. The reversal of 10643505445 is 54450534601.

It can be written as a sum of positive squares in 4 ways, for example, as 1586747556 + 9056757889 = 39834^2 + 95167^2 .

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 10643505445 - 2⁷ = 10643505317 is a prime.

It is a super-2 number, since 2×10643505445² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 605502 + ... + 622831.

It is an arithmetic number, because the mean of its divisors is an integer number (1597448367).

Almost surely, 2^10643505445 is an apocalyptic number.

It is an amenable number.

10643505445 is a deficient number, since it is larger than the sum of its proper divisors (2136081491).

10643505445 is a wasteful number, since it uses less digits than its factorization.

10643505445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230071.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 10643505445 in words is "ten billion, six hundred forty-three million, five hundred five thousand, four hundred forty-five".