6401748165 has 8 divisors (see below), whose sum is σ = 10242797088. Its totient is φ = 3414265680.

The previous prime is 6401748163. The next prime is 6401748179. The reversal of 6401748165 is 5618471046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6401748165 - 2¹ = 6401748163 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401748163) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 213391591 + ... + 213391620.

It is an arithmetic number, because the mean of its divisors is an integer number (1280349636).

Almost surely, 2^6401748165 is an apocalyptic number.

It is an amenable number.

6401748165 is a deficient number, since it is larger than the sum of its proper divisors (3841048923).

6401748165 is a wasteful number, since it uses less digits than its factorization.

6401748165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426783219.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 6401748165 is about 80010.9252852384. The cubic root of 6401748165 is about 1856.8045652045.

The spelling of 6401748165 in words is "six billion, four hundred one million, seven hundred forty-eight thousand, one hundred sixty-five".