500166116505 has 96 divisors (see below), whose sum is σ = 1033705939968. Its totient is φ = 220877107200.

The previous prime is 500166116491. The next prime is 500166116521. The reversal of 500166116505 is 505611661005.

It is not a de Polignac number, because 500166116505 - 2⁵ = 500166116473 is a prime.

It is a super-2 number, since 2×500166116505² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 500166116505.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 697804 + ... + 1219533.

It is an arithmetic number, because the mean of its divisors is an integer number (10767770208).

Almost surely, 2^500166116505 is an apocalyptic number.

500166116505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

500166116505 is an abundant number, since it is smaller than the sum of its proper divisors (533539823463).

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

500166116505 is a wasteful number, since it uses less digits than its factorization.

500166116505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917407 (or 1917404 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 500166116505 in words is "five hundred billion, one hundred sixty-six million, one hundred sixteen thousand, five hundred five".