4165054440665 has 4 divisors (see below), whose sum is σ = 4998065328804. Its totient is φ = 3332043552528.

The previous prime is 4165054440619. The next prime is 4165054440719. The reversal of 4165054440665 is 5660444505614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2355448354009 + 1809606086656 = 1534747^2 + 1345216^2 .

It is a cyclic number.

It is not a de Polignac number, because 4165054440665 - 2⁶ = 4165054440601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416505444062 + ... + 416505444071.

It is an arithmetic number, because the mean of its divisors is an integer number (1249516332201).

Almost surely, 2^{4165054440665} is an apocalyptic number.

It is an amenable number.

4165054440665 is a deficient number, since it is larger than the sum of its proper divisors (833010888139).

4165054440665 is an equidigital number, since it uses as much as digits as its factorization.

4165054440665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833010888138.

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 4165054440665 in words is "four trillion, one hundred sixty-five billion, fifty-four million, four hundred forty thousand, six hundred sixty-five".