505860695816 has 64 divisors (see below), whose sum is σ = 1112298670080. Its totient is φ = 211178882880.

The previous prime is 505860695797. The next prime is 505860695819. The reversal of 505860695816 is 618596068505.

It is not an unprimeable number, because it can be changed into a prime (505860695819) 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, 99911 + ... + 1010793.

It is an arithmetic number, because the mean of its divisors is an integer number (17379666720).

Almost surely, 2^505860695816 is an apocalyptic number.

505860695816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505860695816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556149335040).

505860695816 is an abundant number, since it is smaller than the sum of its proper divisors (606437974264).

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

505860695816 is a wasteful number, since it uses less digits than its factorization.

505860695816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911154 (or 911150 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 59.

The spelling of 505860695816 in words is "five hundred five billion, eight hundred sixty million, six hundred ninety-five thousand, eight hundred sixteen".