165402355 has 16 divisors (see below), whose sum is σ = 200793600. Its totient is φ = 130790880.

The previous prime is 165402331. The next prime is 165402383. The reversal of 165402355 is 553204561.

It is not a de Polignac number, because 165402355 - 2¹⁷ = 165271283 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229686 + ... + 230404.

It is an arithmetic number, because the mean of its divisors is an integer number (12549600).

Almost surely, 2^165402355 is an apocalyptic number.

165402355 is a deficient number, since it is larger than the sum of its proper divisors (35391245).

165402355 is a wasteful number, since it uses less digits than its factorization.

165402355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 165402355 is about 12860.8846896316. The cubic root of 165402355 is about 548.9261194782.

The spelling of 165402355 in words is "one hundred sixty-five million, four hundred two thousand, three hundred fifty-five".