10640623305 has 32 divisors (see below), whose sum is σ = 18966850560. Its totient is φ = 5057821440.

The previous prime is 10640623261. The next prime is 10640623313. The reversal of 10640623305 is 50332604601.

10640623305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10640623305 - 2¹⁹ = 10640099017 is a prime.

It is a super-2 number, since 2×10640623305² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935161 + ... + 946470.

It is an arithmetic number, because the mean of its divisors is an integer number (592714080).

Almost surely, 2^10640623305 is an apocalyptic number.

10640623305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10640623305 is a deficient number, since it is larger than the sum of its proper divisors (8326227255).

10640623305 is a wasteful number, since it uses less digits than its factorization.

10640623305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881681.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 10640623305 in words is "ten billion, six hundred forty million, six hundred twenty-three thousand, three hundred five".