516045626665 has 8 divisors (see below), whose sum is σ = 619705783368. Its totient is φ = 412535813760.

The previous prime is 516045626653. The next prime is 516045626731. The reversal of 516045626665 is 566626540615.

It can be written as a sum of positive squares in 4 ways, for example, as 372689493289 + 143356133376 = 610483^2 + 378624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516045626665 - 2¹¹ = 516045624617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37578396 + ... + 37592125.

It is an arithmetic number, because the mean of its divisors is an integer number (77463222921).

Almost surely, 2^516045626665 is an apocalyptic number.

It is an amenable number.

516045626665 is a deficient number, since it is larger than the sum of its proper divisors (103660156703).

516045626665 is a wasteful number, since it uses less digits than its factorization.

516045626665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75171899.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 516045626665 in words is "five hundred sixteen billion, forty-five million, six hundred twenty-six thousand, six hundred sixty-five".