5165866841 has 4 divisors (see below), whose sum is σ = 5216020992. Its totient is φ = 5115712692.

The previous prime is 5165866829. The next prime is 5165866847. The reversal of 5165866841 is 1486685615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5165866841 - 2¹⁴ = 5165850457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5165866841.

It is not an unprimeable number, because it can be changed into a prime (5165866847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25076921 + ... + 25077126.

It is an arithmetic number, because the mean of its divisors is an integer number (1304005248).

Almost surely, 2^5165866841 is an apocalyptic number.

It is an amenable number.

5165866841 is a deficient number, since it is larger than the sum of its proper divisors (50154151).

5165866841 is a wasteful number, since it uses less digits than its factorization.

5165866841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50154150.

The product of its digits is 1382400, while the sum is 50.

The square root of 5165866841 is about 71873.9649734172. The cubic root of 5165866841 is about 1728.6791839647.

The spelling of 5165866841 in words is "five billion, one hundred sixty-five million, eight hundred sixty-six thousand, eight hundred forty-one".