165055700 has 18 divisors (see below), whose sum is σ = 358171086. Its totient is φ = 66022240.

The previous prime is 165055673. The next prime is 165055729. The reversal of 165055700 is 7550561.

165055700 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1522756 + 163532944 = 1234^2 + 12788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 825179 + ... + 825378.

Almost surely, 2^165055700 is an apocalyptic number.

165055700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165055700 is an abundant number, since it is smaller than the sum of its proper divisors (193115386).

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

165055700 is a wasteful number, since it uses less digits than its factorization.

165055700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650571 (or 1650564 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 165055700 is about 12847.4005152793. The cubic root of 165055700 is about 548.5423662240.

The spelling of 165055700 in words is "one hundred sixty-five million, fifty-five thousand, seven hundred".