516661131 has 16 divisors (see below), whose sum is σ = 806496768. Its totient is φ = 288033600.

The previous prime is 516661099. The next prime is 516661151. The reversal of 516661131 is 131166615.

It is not a de Polignac number, because 516661131 - 2⁵ = 516661099 is a prime.

It is a super-2 number, since 2×516661131² = 533877448572398322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516661151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299175 + ... + 300896.

It is an arithmetic number, because the mean of its divisors is an integer number (50406048).

Almost surely, 2^516661131 is an apocalyptic number.

516661131 is a deficient number, since it is larger than the sum of its proper divisors (289835637).

516661131 is a wasteful number, since it uses less digits than its factorization.

516661131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600122.

The product of its digits is 3240, while the sum is 30.

The square root of 516661131 is about 22730.1810595516. The cubic root of 516661131 is about 802.4203424393.

The spelling of 516661131 in words is "five hundred sixteen million, six hundred sixty-one thousand, one hundred thirty-one".