4164866644565 has 8 divisors (see below), whose sum is σ = 5452189062048. Its totient is φ = 3028993923280.

The previous prime is 4164866644459. The next prime is 4164866644591. The reversal of 4164866644565 is 5654466684614.

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

It is not a de Polignac number, because 4164866644565 - 2¹² = 4164866640469 is a prime.

It is a super-2 number, since 2×4164866644565² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37862423987 + ... + 37862424096.

It is an arithmetic number, because the mean of its divisors is an integer number (681523632756).

Almost surely, 2^{4164866644565} is an apocalyptic number.

It is an amenable number.

4164866644565 is a deficient number, since it is larger than the sum of its proper divisors (1287322417483).

4164866644565 is a wasteful number, since it uses less digits than its factorization.

4164866644565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75724848099.

The product of its digits is 398131200, while the sum is 65.

The spelling of 4164866644565 in words is "four trillion, one hundred sixty-four billion, eight hundred sixty-six million, six hundred forty-four thousand, five hundred sixty-five".