165798354 has 16 divisors (see below), whose sum is σ = 342293760. Its totient is φ = 53483280.

The previous prime is 165798343. The next prime is 165798371. The reversal of 165798354 is 453897561.

165798354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 445509 + ... + 445880.

It is an arithmetic number, because the mean of its divisors is an integer number (21393360).

Almost surely, 2^165798354 is an apocalyptic number.

165798354 is an abundant number, since it is smaller than the sum of its proper divisors (176495406).

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

165798354 is a wasteful number, since it uses less digits than its factorization.

165798354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891425.

The product of its digits is 907200, while the sum is 48.

The square root of 165798354 is about 12876.2709663940. The cubic root of 165798354 is about 549.3638418812.

The spelling of 165798354 in words is "one hundred sixty-five million, seven hundred ninety-eight thousand, three hundred fifty-four".