10644740365506 has 32 divisors (see below), whose sum is σ = 22934260503168. Its totient is φ = 3274286526720.

The previous prime is 10644740365453. The next prime is 10644740365529. The reversal of 10644740365506 is 60556304744601.

It is a super-2 number, since 2×10644740365506² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20959990 + ... + 21461841.

It is an arithmetic number, because the mean of its divisors is an integer number (716695640724).

Almost surely, 2^{10644740365506} is an apocalyptic number.

10644740365506 is an abundant number, since it is smaller than the sum of its proper divisors (12289520137662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10644740365506 is a wasteful number, since it uses less digits than its factorization.

10644740365506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42425066.

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 10644740365506 in words is "ten trillion, six hundred forty-four billion, seven hundred forty million, three hundred sixty-five thousand, five hundred six".