516451266 has 24 divisors (see below), whose sum is σ = 1123341804. Its totient is φ = 171479040.

The previous prime is 516451261. The next prime is 516451277. The reversal of 516451266 is 662154615.

516451266 is a `hidden beast` number, since 5 + 1 + 645 + 1 + 2 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 487129041 + 29322225 = 22071^2 + 5415^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 516451266.

It is not an unprimeable number, because it can be changed into a prime (516451261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51195 + ... + 60446.

Almost surely, 2^516451266 is an apocalyptic number.

516451266 is an abundant number, since it is smaller than the sum of its proper divisors (606890538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516451266 is a wasteful number, since it uses less digits than its factorization.

516451266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111906 (or 111903 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 516451266 is about 22725.5641514133. The cubic root of 516451266 is about 802.3116814355.

The spelling of 516451266 in words is "five hundred sixteen million, four hundred fifty-one thousand, two hundred sixty-six".