165370842 has 128 divisors (see below), whose sum is σ = 459486720. Its totient is φ = 42923520.

The previous prime is 165370841. The next prime is 165370853. The reversal of 165370842 is 248073561.

It is a junction number, because it is equal to n+sod(n) for n = 165370797 and 165370806.

It is not an unprimeable number, because it can be changed into a prime (165370841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 358492 + ... + 358952.

It is an arithmetic number, because the mean of its divisors is an integer number (3589740).

Almost surely, 2^165370842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165370842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229743360).

165370842 is an abundant number, since it is smaller than the sum of its proper divisors (294115878).

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

165370842 is a wasteful number, since it uses less digits than its factorization.

165370842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 165370842 is about 12859.6594822725. The cubic root of 165370842 is about 548.8912561949.

The spelling of 165370842 in words is "one hundred sixty-five million, three hundred seventy thousand, eight hundred forty-two".