505157638170 has 16 divisors (see below), whose sum is σ = 1212378331680. Its totient is φ = 134708703504.

The previous prime is 505157638093. The next prime is 505157638171. The reversal of 505157638170 is 71836751505.

It is not an unprimeable number, because it can be changed into a prime (505157638171) 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, 8419293940 + ... + 8419293999.

It is an arithmetic number, because the mean of its divisors is an integer number (75773645730).

Almost surely, 2^505157638170 is an apocalyptic number.

505157638170 is an abundant number, since it is smaller than the sum of its proper divisors (707220693510).

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

505157638170 is a wasteful number, since it uses less digits than its factorization.

505157638170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16838587949.

The product of its (nonzero) digits is 882000, while the sum is 48.

The spelling of 505157638170 in words is "five hundred five billion, one hundred fifty-seven million, six hundred thirty-eight thousand, one hundred seventy".