516942306169 has 9 divisors (see below), whose sum is σ = 519696900783. Its totient is φ = 514202246712.

The previous prime is 516942306163. The next prime is 516942306173. The reversal of 516942306169 is 961603249615.

It is a happy number.

The square root of 516942306169 is 718987.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 286117225 + 516656188944 = 16915^2 + 718788^2 .

It is not a de Polignac number, because 516942306169 - 2²¹ = 516940209017 is a prime.

It is a super-2 number, since 2×516942306169² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516942306163) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 143076607 + ... + 143080219.

It is an arithmetic number, because the mean of its divisors is an integer number (57744100087).

Almost surely, 2^516942306169 is an apocalyptic number.

516942306169 is the 718987-th square number.

516942306169 is the 359494-th centered octagonal number.

It is an amenable number.

516942306169 is a deficient number, since it is larger than the sum of its proper divisors (2754594614).

516942306169 is an frugal number, since it uses more digits than its factorization.

516942306169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624 (or 3812 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 516942306169 in words is "five hundred sixteen billion, nine hundred forty-two million, three hundred six thousand, one hundred sixty-nine".