165315331842 has 16 divisors (see below), whose sum is σ = 337665359232. Its totient is φ = 53932661360.

The previous prime is 165315331813. The next prime is 165315331849. The reversal of 165315331842 is 248133513561.

It is a super-2 number, since 2×165315331842² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165315331794 and 165315331803.

It is not an unprimeable number, because it can be changed into a prime (165315331849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293112009 + ... + 293112572.

It is an arithmetic number, because the mean of its divisors is an integer number (21104084952).

Almost surely, 2^165315331842 is an apocalyptic number.

165315331842 is an abundant number, since it is smaller than the sum of its proper divisors (172350027390).

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

165315331842 is a wasteful number, since it uses less digits than its factorization.

165315331842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586224633.

The product of its digits is 259200, while the sum is 42.

The spelling of 165315331842 in words is "one hundred sixty-five billion, three hundred fifteen million, three hundred thirty-one thousand, eight hundred forty-two".