516668383385 has 32 divisors (see below), whose sum is σ = 777618358272. Its totient is φ = 320150335680.

The previous prime is 516668383261. The next prime is 516668383393. The reversal of 516668383385 is 583383866615.

It is not a de Polignac number, because 516668383385 - 2²⁴ = 516651606169 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3953657 + ... + 4082246.

It is an arithmetic number, because the mean of its divisors is an integer number (24300573696).

Almost surely, 2^516668383385 is an apocalyptic number.

516668383385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516668383385 is a deficient number, since it is larger than the sum of its proper divisors (260949974887).

516668383385 is a wasteful number, since it uses less digits than its factorization.

516668383385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036093.

The product of its digits is 74649600, while the sum is 62.

The spelling of 516668383385 in words is "five hundred sixteen billion, six hundred sixty-eight million, three hundred eighty-three thousand, three hundred eighty-five".