516540649854 has 16 divisors (see below), whose sum is σ = 1035293470848. Its totient is φ = 171811521432.

The previous prime is 516540649847. The next prime is 516540649873. The reversal of 516540649854 is 458946045615.

It is a super-3 number, since 3×516540649854³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 516540649794 and 516540649803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92170762 + ... + 92176365.

It is an arithmetic number, because the mean of its divisors is an integer number (64705841928).

Almost surely, 2^516540649854 is an apocalyptic number.

516540649854 is an abundant number, since it is smaller than the sum of its proper divisors (518752820994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516540649854 is a wasteful number, since it uses less digits than its factorization.

516540649854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184347599.

The product of its (nonzero) digits is 20736000, while the sum is 57.

The spelling of 516540649854 in words is "five hundred sixteen billion, five hundred forty million, six hundred forty-nine thousand, eight hundred fifty-four".