516446145 has 64 divisors (see below), whose sum is σ = 976631040. Its totient is φ = 258038784.

The previous prime is 516446141. The next prime is 516446149. The reversal of 516446145 is 541644615.

516446145 is a `hidden beast` number, since 5 + 1 + 644 + 6 + 1 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (516446141) and next prime (516446149).

It is not a de Polignac number, because 516446145 - 2² = 516446141 is a prime.

It is a super-2 number, since 2×516446145² = 533433241370722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516446141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 704199 + ... + 704931.

It is an arithmetic number, because the mean of its divisors is an integer number (15259860).

Almost surely, 2^516446145 is an apocalyptic number.

It is an amenable number.

516446145 is a deficient number, since it is larger than the sum of its proper divisors (460184895).

516446145 is a wasteful number, since it uses less digits than its factorization.

516446145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1065 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 516446145 is about 22725.4514806637. The cubic root of 516446145 is about 802.3090295869.

The spelling of 516446145 in words is "five hundred sixteen million, four hundred forty-six thousand, one hundred forty-five".