516366336545 has 8 divisors (see below), whose sum is σ = 656088992424. Its totient is φ = 388793476864.

The previous prime is 516366336517. The next prime is 516366336557. The reversal of 516366336545 is 545633663615.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 295612952209 + 220753384336 = 543703^2 + 469844^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 516366336545 - 2⁸ = 516366336289 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, 3037448954 + ... + 3037449123.

It is an arithmetic number, because the mean of its divisors is an integer number (82011124053).

Almost surely, 2^516366336545 is an apocalyptic number.

It is an amenable number.

516366336545 is a deficient number, since it is larger than the sum of its proper divisors (139722655879).

516366336545 is a wasteful number, since it uses less digits than its factorization.

516366336545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074898099.

The product of its digits is 17496000, while the sum is 53.

The spelling of 516366336545 in words is "five hundred sixteen billion, three hundred sixty-six million, three hundred thirty-six thousand, five hundred forty-five".