5166105221 has 4 divisors (see below), whose sum is σ = 5190589344. Its totient is φ = 5141621100.

The previous prime is 5166105151. The next prime is 5166105239. The reversal of 5166105221 is 1225016615.

It is a happy number.

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 5166105221 - 2²² = 5161910917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166105521) 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, 12241745 + ... + 12242166.

It is an arithmetic number, because the mean of its divisors is an integer number (1297647336).

Almost surely, 2^5166105221 is an apocalyptic number.

It is an amenable number.

5166105221 is a deficient number, since it is larger than the sum of its proper divisors (24484123).

5166105221 is a wasteful number, since it uses less digits than its factorization.

5166105221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484122.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 5166105221 is about 71875.6232738193. The cubic root of 5166105221 is about 1728.7057736426.

The spelling of 5166105221 in words is "five billion, one hundred sixty-six million, one hundred five thousand, two hundred twenty-one".