505363161166 has 64 divisors (see below), whose sum is σ = 809980300800. Its totient is φ = 235806270336.

The previous prime is 505363161161. The next prime is 505363161169. The reversal of 505363161166 is 661161363505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505363161161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680165391 + ... + 680166133.

It is an arithmetic number, because the mean of its divisors is an integer number (12655942200).

Almost surely, 2^505363161166 is an apocalyptic number.

505363161166 is a deficient number, since it is larger than the sum of its proper divisors (304617139634).

505363161166 is a wasteful number, since it uses less digits than its factorization.

505363161166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 505363161166 in words is "five hundred five billion, three hundred sixty-three million, one hundred sixty-one thousand, one hundred sixty-six".