516623364 has 36 divisors (see below), whose sum is σ = 1306769100. Its totient is φ = 172094400.

The previous prime is 516623363. The next prime is 516623381. The reversal of 516623364 is 463326615.

It can be written as a sum of positive squares in 2 ways, for example, as 226261764 + 290361600 = 15042^2 + 17040^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (516623363) 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, 64662 + ... + 72210.

Almost surely, 2^516623364 is an apocalyptic number.

It is an amenable number.

516623364 is an abundant number, since it is smaller than the sum of its proper divisors (790145736).

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

516623364 is a wasteful number, since it uses less digits than its factorization.

516623364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460 (or 9455 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 516623364 is about 22729.3502766797. The cubic root of 516623364 is about 802.4007901346.

Adding to 516623364 its reverse (463326615), we get a palindrome (979949979).

The spelling of 516623364 in words is "five hundred sixteen million, six hundred twenty-three thousand, three hundred sixty-four".