516479690661 has 16 divisors (see below), whose sum is σ = 751256275008. Its totient is φ = 313012540800.

The previous prime is 516479690579. The next prime is 516479690737. The reversal of 516479690661 is 166096974615.

It is not a de Polignac number, because 516479690661 - 2¹⁵ = 516479657893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 516479690595 and 516479690604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516479620661) 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, 2615385 + ... + 2805921.

It is an arithmetic number, because the mean of its divisors is an integer number (46953517188).

Almost surely, 2^516479690661 is an apocalyptic number.

It is an amenable number.

516479690661 is a deficient number, since it is larger than the sum of its proper divisors (234776584347).

516479690661 is a wasteful number, since it uses less digits than its factorization.

516479690661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272692.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 516479690661 in words is "five hundred sixteen billion, four hundred seventy-nine million, six hundred ninety thousand, six hundred sixty-one".