162805321918 has 16 divisors (see below), whose sum is σ = 253925714304. Its totient is φ = 78201751680.

The previous prime is 162805321873. The next prime is 162805321937. The reversal of 162805321918 is 819123508261.

162805321918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×162805321918² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575055 + ... + 9592042.

It is an arithmetic number, because the mean of its divisors is an integer number (15870357144).

Almost surely, 2^162805321918 is an apocalyptic number.

162805321918 is a deficient number, since it is larger than the sum of its proper divisors (91120392386).

162805321918 is a wasteful number, since it uses less digits than its factorization.

162805321918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19167267.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 162805321918 in words is "one hundred sixty-two billion, eight hundred five million, three hundred twenty-one thousand, nine hundred eighteen".