516234645 has 24 divisors (see below), whose sum is σ = 896305176. Its totient is φ = 274864128.

The previous prime is 516234637. The next prime is 516234647. The reversal of 516234645 is 546432615.

516234645 is a `hidden beast` number, since 5 + 1 + 6 + 2 + 3 + 4 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1580049 + 514654596 = 1257^2 + 22686^2 .

It is not a de Polignac number, because 516234645 - 2³ = 516234637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516234647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18469 + ... + 37061.

It is an arithmetic number, because the mean of its divisors is an integer number (37346049).

Almost surely, 2^516234645 is an apocalyptic number.

It is an amenable number.

516234645 is a deficient number, since it is larger than the sum of its proper divisors (380070531).

516234645 is a wasteful number, since it uses less digits than its factorization.

516234645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19221 (or 19218 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 516234645 is about 22720.7976312453. The cubic root of 516234645 is about 802.1994915251.

The spelling of 516234645 in words is "five hundred sixteen million, two hundred thirty-four thousand, six hundred forty-five".