10523644655 has 4 divisors (see below), whose sum is σ = 12628373592. Its totient is φ = 8418915720.

The previous prime is 10523644639. The next prime is 10523644667. The reversal of 10523644655 is 55644632501.

It is a happy number.

10523644655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55644632501 = 67 ⋅830516903.

It is not a de Polignac number, because 10523644655 - 2⁴ = 10523644639 is a prime.

It is a super-2 number, since 2×10523644655² (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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052364461 + ... + 1052364470.

It is an arithmetic number, because the mean of its divisors is an integer number (3157093398).

Almost surely, 2^10523644655 is an apocalyptic number.

10523644655 is a deficient number, since it is larger than the sum of its proper divisors (2104728937).

10523644655 is an equidigital number, since it uses as much as digits as its factorization.

10523644655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104728936.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 10523644655 in words is "ten billion, five hundred twenty-three million, six hundred forty-four thousand, six hundred fifty-five".