516082491545 has 4 divisors (see below), whose sum is σ = 619298989860. Its totient is φ = 412865993232.

The previous prime is 516082491503. The next prime is 516082491601. The reversal of 516082491545 is 545194280615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 393145302169 + 122937189376 = 627013^2 + 350624^2 .

It is a cyclic number.

It is not a de Polignac number, because 516082491545 - 2⁸ = 516082491289 is a prime.

It is a super-2 number, since 2×516082491545² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 516082491493 and 516082491502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51608249150 + ... + 51608249159.

It is an arithmetic number, because the mean of its divisors is an integer number (154824747465).

Almost surely, 2^516082491545 is an apocalyptic number.

It is an amenable number.

516082491545 is a deficient number, since it is larger than the sum of its proper divisors (103216498315).

516082491545 is a wasteful number, since it uses less digits than its factorization.

516082491545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103216498314.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 516082491545 in words is "five hundred sixteen billion, eighty-two million, four hundred ninety-one thousand, five hundred forty-five".