4165850555 has 4 divisors (see below), whose sum is σ = 4999020672. Its totient is φ = 3332680440.

The previous prime is 4165850539. The next prime is 4165850573. The reversal of 4165850555 is 5550585614.

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

It is not a de Polignac number, because 4165850555 - 2⁴ = 4165850539 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, 416585051 + ... + 416585060.

It is an arithmetic number, because the mean of its divisors is an integer number (1249755168).

Almost surely, 2^4165850555 is an apocalyptic number.

4165850555 is a deficient number, since it is larger than the sum of its proper divisors (833170117).

4165850555 is an equidigital number, since it uses as much as digits as its factorization.

4165850555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833170116.

The product of its (nonzero) digits is 600000, while the sum is 44.

The square root of 4165850555 is about 64543.4005534261. The cubic root of 4165850555 is about 1609.0439078626.

The spelling of 4165850555 in words is "four billion, one hundred sixty-five million, eight hundred fifty thousand, five hundred fifty-five".