2664406441165 has 8 divisors (see below), whose sum is σ = 3654043119360. Its totient is φ = 1827021559632.

The previous prime is 2664406441159. The next prime is 2664406441171. The reversal of 2664406441165 is 5611446044662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2664406441159) and next prime (2664406441171).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664406441165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38062949125 + ... + 38062949194.

It is an arithmetic number, because the mean of its divisors is an integer number (456755389920).

Almost surely, 2^{2664406441165} is an apocalyptic number.

It is an amenable number.

2664406441165 is a deficient number, since it is larger than the sum of its proper divisors (989636678195).

2664406441165 is an equidigital number, since it uses as much as digits as its factorization.

2664406441165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76125898331.

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 2664406441165 in words is "two trillion, six hundred sixty-four billion, four hundred six million, four hundred forty-one thousand, one hundred sixty-five".