5165428565 has 32 divisors (see below), whose sum is σ = 6869256192. Its totient is φ = 3697288000.

The previous prime is 5165428561. The next prime is 5165428589. The reversal of 5165428565 is 5658245615.

It is not a de Polignac number, because 5165428565 - 2² = 5165428561 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 (5165428561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4025414 + ... + 4026696.

It is an arithmetic number, because the mean of its divisors is an integer number (214664256).

Almost surely, 2^5165428565 is an apocalyptic number.

5165428565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5165428565 is a deficient number, since it is larger than the sum of its proper divisors (1703827627).

5165428565 is a wasteful number, since it uses less digits than its factorization.

5165428565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its digits is 1440000, while the sum is 47.

The square root of 5165428565 is about 71870.9159883189. The cubic root of 5165428565 is about 1728.6302951045.

The spelling of 5165428565 in words is "five billion, one hundred sixty-five million, four hundred twenty-eight thousand, five hundred sixty-five".