516454560461 has 32 divisors (see below), whose sum is σ = 648738816000. Its totient is φ = 409769403120.

The previous prime is 516454560451. The next prime is 516454560467. The reversal of 516454560461 is 164065454615.

It is a de Polignac number, because none of the positive numbers 2^k-516454560461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516454560467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811331 + ... + 1300448.

It is an arithmetic number, because the mean of its divisors is an integer number (20273088000).

Almost surely, 2^516454560461 is an apocalyptic number.

It is an amenable number.

516454560461 is a deficient number, since it is larger than the sum of its proper divisors (132284255539).

516454560461 is a wasteful number, since it uses less digits than its factorization.

516454560461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111854 (or 2111840 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 516454560461 in words is "five hundred sixteen billion, four hundred fifty-four million, five hundred sixty thousand, four hundred sixty-one".