4665111641 has 4 divisors (see below), whose sum is σ = 4665248484. Its totient is φ = 4664974800.

The previous prime is 4665111623. The next prime is 4665111679. The reversal of 4665111641 is 1461115664.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4256910025 + 408201616 = 65245^2 + 20204^2 .

It is a cyclic number.

It is not a de Polignac number, because 4665111641 - 2¹⁰ = 4665110617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4665111691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28151 + ... + 100611.

It is an arithmetic number, because the mean of its divisors is an integer number (1166312121).

Almost surely, 2^4665111641 is an apocalyptic number.

It is an amenable number.

4665111641 is a deficient number, since it is larger than the sum of its proper divisors (136843).

4665111641 is an equidigital number, since it uses as much as digits as its factorization.

4665111641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136842.

The product of its digits is 17280, while the sum is 35.

The square root of 4665111641 is about 68301.6225356323. The cubic root of 4665111641 is about 1670.9136765827.

The spelling of 4665111641 in words is "four billion, six hundred sixty-five million, one hundred eleven thousand, six hundred forty-one".