5220620165 has 16 divisors (see below), whose sum is σ = 6488521200. Its totient is φ = 4027656192.

The previous prime is 5220620147. The next prime is 5220620173. The reversal of 5220620165 is 5610260225.

It can be written as a sum of positive squares in 8 ways, for example, as 146337409 + 5074282756 = 12097^2 + 71234^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220620165 - 2¹⁸ = 5220358021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102581 + ... + 144789.

It is an arithmetic number, because the mean of its divisors is an integer number (405532575).

Almost surely, 2^5220620165 is an apocalyptic number.

It is an amenable number.

5220620165 is a deficient number, since it is larger than the sum of its proper divisors (1267901035).

5220620165 is a wasteful number, since it uses less digits than its factorization.

5220620165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43096.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5220620165 is about 72253.8591702893. The cubic root of 5220620165 is about 1734.7651895379.

The spelling of 5220620165 in words is "five billion, two hundred twenty million, six hundred twenty thousand, one hundred sixty-five".