505363644066 has 16 divisors (see below), whose sum is σ = 1045579953600. Its totient is φ = 162645770448.

The previous prime is 505363644031. The next prime is 505363644067. The reversal of 505363644066 is 660446363505.

It is not an unprimeable number, because it can be changed into a prime (505363644067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452194206 + ... + 1452194553.

It is an arithmetic number, because the mean of its divisors is an integer number (65348747100).

Almost surely, 2^505363644066 is an apocalyptic number.

505363644066 is an abundant number, since it is smaller than the sum of its proper divisors (540216309534).

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

505363644066 is a wasteful number, since it uses less digits than its factorization.

505363644066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904388793.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 505363644066 in words is "five hundred five billion, three hundred sixty-three million, six hundred forty-four thousand, sixty-six".