516230653661 has 12 divisors (see below), whose sum is σ = 542165094972. Its totient is φ = 491388192000.

The previous prime is 516230653633. The next prime is 516230653681. The reversal of 516230653661 is 166356032615.

It can be written as a sum of positive squares in 2 ways, for example, as 212636265625 + 303594388036 = 461125^2 + 550994^2 .

It is not a de Polignac number, because 516230653661 - 2²⁶ = 516163544797 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516230653681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4344500 + ... + 4461741.

It is an arithmetic number, because the mean of its divisors is an integer number (45180424581).

Almost surely, 2^516230653661 is an apocalyptic number.

It is an amenable number.

516230653661 is a deficient number, since it is larger than the sum of its proper divisors (25934441311).

516230653661 is an equidigital number, since it uses as much as digits as its factorization.

516230653661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8806364 (or 8806333 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 516230653661 in words is "five hundred sixteen billion, two hundred thirty million, six hundred fifty-three thousand, six hundred sixty-one".