10644330915 has 24 divisors (see below), whose sum is σ = 18632856528. Its totient is φ = 5620766400.

The previous prime is 10644330899. The next prime is 10644330929. The reversal of 10644330915 is 51903344601.

10644330915 is a `hidden beast` number, since 1 + 0 + 644 + 3 + 3 + 0 + 9 + 1 + 5 = 666.

It is not a de Polignac number, because 10644330915 - 2⁴ = 10644330899 is a prime.

It is a super-2 number, since 2×10644330915² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10644330915.

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 23 ways as a sum of consecutive naturals, for example, 1166449 + ... + 1175538.

It is an arithmetic number, because the mean of its divisors is an integer number (776369022).

Almost surely, 2^10644330915 is an apocalyptic number.

10644330915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10644330915 is a deficient number, since it is larger than the sum of its proper divisors (7988525613).

10644330915 is a wasteful number, since it uses less digits than its factorization.

10644330915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342099 (or 2342096 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 10644330915 in words is "ten billion, six hundred forty-four million, three hundred thirty thousand, nine hundred fifteen".