505601055164 has 24 divisors (see below), whose sum is σ = 895639657248. Its totient is φ = 249714017280.

The previous prime is 505601055161. The next prime is 505601055221. The reversal of 505601055164 is 461550106505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505601055161) 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 7 ways as a sum of consecutive naturals, for example, 1048424 + ... + 1452719.

It is an arithmetic number, because the mean of its divisors is an integer number (37318319052).

Almost surely, 2^505601055164 is an apocalyptic number.

It is an amenable number.

505601055164 is a deficient number, since it is larger than the sum of its proper divisors (390038602084).

505601055164 is a wasteful number, since it uses less digits than its factorization.

505601055164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501765 (or 2501763 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 505601055164 in words is "five hundred five billion, six hundred one million, fifty-five thousand, one hundred sixty-four".