516378165 has 16 divisors (see below), whose sum is σ = 826488576. Its totient is φ = 275307200.

The previous prime is 516378139. The next prime is 516378167. The reversal of 516378165 is 561873615.

It is not a de Polignac number, because 516378165 - 2⁸ = 516377909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516378167) by changing a digit.

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, 75175 + ... + 81755.

It is an arithmetic number, because the mean of its divisors is an integer number (51655536).

Almost surely, 2^516378165 is an apocalyptic number.

It is an amenable number.

516378165 is a deficient number, since it is larger than the sum of its proper divisors (310110411).

516378165 is a wasteful number, since it uses less digits than its factorization.

516378165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820.

The product of its digits is 151200, while the sum is 42.

The square root of 516378165 is about 22723.9557515852. The cubic root of 516378165 is about 802.2738252959.

The spelling of 516378165 in words is "five hundred sixteen million, three hundred seventy-eight thousand, one hundred sixty-five".