165055480 has 32 divisors (see below), whose sum is σ = 372612240. Its totient is φ = 65802240.

The previous prime is 165055459. The next prime is 165055481. The reversal of 165055480 is 84550561.

It is a happy number.

It is a super-2 number, since 2×165055480² = 54486622956060800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165055481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5560 + ... + 19000.

Almost surely, 2^165055480 is an apocalyptic number.

165055480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165055480 is an abundant number, since it is smaller than the sum of its proper divisors (207556760).

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

165055480 is a wasteful number, since it uses less digits than its factorization.

165055480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13759 (or 13755 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 165055480 is about 12847.3919532332. The cubic root of 165055480 is about 548.5421225095.

The spelling of 165055480 in words is "one hundred sixty-five million, fifty-five thousand, four hundred eighty".