165342555 has 48 divisors (see below), whose sum is σ = 330842304. Its totient is φ = 74822400.

The previous prime is 165342553. The next prime is 165342559. The reversal of 165342555 is 555243561.

165342555 is a `hidden beast` number, since 1 + 65 + 3 + 42 + 555 = 666.

It is not a de Polignac number, because 165342555 - 2¹ = 165342553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165342553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29217 + ... + 34413.

It is an arithmetic number, because the mean of its divisors is an integer number (6892548).

Almost surely, 2^165342555 is an apocalyptic number.

165342555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165342555 is an abundant number, since it is smaller than the sum of its proper divisors (165499749).

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

165342555 is a wasteful number, since it uses less digits than its factorization.

165342555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5316 (or 5313 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 165342555 is about 12858.5596005151. The cubic root of 165342555 is about 548.8599581092.

The spelling of 165342555 in words is "one hundred sixty-five million, three hundred forty-two thousand, five hundred fifty-five".