505116506166 has 32 divisors (see below), whose sum is σ = 1013842768128. Its totient is φ = 167771593440.

The previous prime is 505116506123. The next prime is 505116506171. The reversal of 505116506166 is 661605611505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800681 + ... + 2062203.

It is an arithmetic number, because the mean of its divisors is an integer number (31682586504).

Almost surely, 2^505116506166 is an apocalyptic number.

505116506166 is an abundant number, since it is smaller than the sum of its proper divisors (508726261962).

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

505116506166 is a wasteful number, since it uses less digits than its factorization.

505116506166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262676.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 505116506166 in words is "five hundred five billion, one hundred sixteen million, five hundred six thousand, one hundred sixty-six".