516665445 has 32 divisors (see below), whose sum is σ = 913358592. Its totient is φ = 248067072.

The previous prime is 516665431. The next prime is 516665453. The reversal of 516665445 is 544566615.

It is not a de Polignac number, because 516665445 - 2²¹ = 514568293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516665397 and 516665406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38182 + ... + 49911.

It is an arithmetic number, because the mean of its divisors is an integer number (28542456).

Almost surely, 2^516665445 is an apocalyptic number.

It is an amenable number.

516665445 is a deficient number, since it is larger than the sum of its proper divisors (396693147).

516665445 is a wasteful number, since it uses less digits than its factorization.

516665445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88141.

The product of its digits is 432000, while the sum is 42.

The square root of 516665445 is about 22730.2759552100. The cubic root of 516665445 is about 802.4225757740.

The spelling of 516665445 in words is "five hundred sixteen million, six hundred sixty-five thousand, four hundred forty-five".