10644331115 has 48 divisors (see below), whose sum is σ = 14751486720. Its totient is φ = 7298691840.

The previous prime is 10644331111. The next prime is 10644331169. The reversal of 10644331115 is 51113344601.

It is not a de Polignac number, because 10644331115 - 2² = 10644331111 is a prime.

It is a super-2 number, since 2×10644331115² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10644331111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6740396 + ... + 6741974.

It is an arithmetic number, because the mean of its divisors is an integer number (307322640).

Almost surely, 2^10644331115 is an apocalyptic number.

10644331115 is a deficient number, since it is larger than the sum of its proper divisors (4107155605).

10644331115 is a wasteful number, since it uses less digits than its factorization.

10644331115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 10644331115 its reverse (51113344601), we get a palindrome (61757675716).

The spelling of 10644331115 in words is "ten billion, six hundred forty-four million, three hundred thirty-one thousand, one hundred fifteen".