6744081844665 has 192 divisors, whose sum is σ = 14446277164800. Its totient is φ = 2867739033600.

The previous prime is 6744081844639. The next prime is 6744081844667. The reversal of 6744081844665 is 5664481804476.

6744081844665 is a `hidden beast` number, since 6 + 7 + 4 + 408 + 184 + 46 + 6 + 5 = 666.

It is not a de Polignac number, because 6744081844665 - 2⁷ = 6744081844537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6744081844667) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9407241 + ... + 10098729.

It is an arithmetic number, because the mean of its divisors is an integer number (75241026900).

Almost surely, 2^{6744081844665} is an apocalyptic number.

It is an amenable number.

6744081844665 is an abundant number, since it is smaller than the sum of its proper divisors (7702195320135).

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

6744081844665 is a wasteful number, since it uses less digits than its factorization.

6744081844665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691608 (or 691605 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 63.

The spelling of 6744081844665 in words is "six trillion, seven hundred forty-four billion, eighty-one million, eight hundred forty-four thousand, six hundred sixty-five".