516168386855 has 32 divisors (see below), whose sum is σ = 678579821568. Its totient is φ = 373804560000.

The previous prime is 516168386849. The next prime is 516168386863. The reversal of 516168386855 is 558683861615.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-516168386855 is a prime.

It is a congruent 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, 14314829 + ... + 14350841.

It is an arithmetic number, because the mean of its divisors is an integer number (21205619424).

Almost surely, 2^516168386855 is an apocalyptic number.

516168386855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516168386855 is a deficient number, since it is larger than the sum of its proper divisors (162411434713).

516168386855 is a wasteful number, since it uses less digits than its factorization.

516168386855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37127.

The product of its digits is 41472000, while the sum is 62.

The spelling of 516168386855 in words is "five hundred sixteen billion, one hundred sixty-eight million, three hundred eighty-six thousand, eight hundred fifty-five".