516520460261 has 16 divisors (see below), whose sum is σ = 587549867520. Its totient is φ = 450677424960.

The previous prime is 516520460249. The next prime is 516520460273. The reversal of 516520460261 is 162064025615.

It is an interprime number because it is at equal distance from previous prime (516520460249) and next prime (516520460273).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516520460261 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 (516520460221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14886026 + ... + 14920683.

It is an arithmetic number, because the mean of its divisors is an integer number (36721866720).

Almost surely, 2^516520460261 is an apocalyptic number.

It is an amenable number.

516520460261 is a deficient number, since it is larger than the sum of its proper divisors (71029407259).

516520460261 is a wasteful number, since it uses less digits than its factorization.

516520460261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29806796.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 516520460261 its reverse (162064025615), we get a palindrome (678584485876).

The spelling of 516520460261 in words is "five hundred sixteen billion, five hundred twenty million, four hundred sixty thousand, two hundred sixty-one".