165430853842 has 8 divisors (see below), whose sum is σ = 249726830796. Its totient is φ = 82188576912.

The previous prime is 165430853831. The next prime is 165430853851. The reversal of 165430853842 is 248358034561.

It can be written as a sum of positive squares in 2 ways, for example, as 140032375681 + 25398478161 = 374209^2 + 159369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263424613 + ... + 263425240.

Almost surely, 2^165430853842 is an apocalyptic number.

165430853842 is a deficient number, since it is larger than the sum of its proper divisors (84295976954).

165430853842 is a wasteful number, since it uses less digits than its factorization.

165430853842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526850012.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 165430853842 in words is "one hundred sixty-five billion, four hundred thirty million, eight hundred fifty-three thousand, eight hundred forty-two".