165480678 has 64 divisors (see below), whose sum is σ = 407831040. Its totient is φ = 49312800.

The previous prime is 165480677. The next prime is 165480719. The reversal of 165480678 is 876084561.

It is a happy number.

165480678 is a `hidden beast` number, since 165 + 480 + 6 + 7 + 8 = 666.

165480678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165480673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33951 + ... + 38517.

It is an arithmetic number, because the mean of its divisors is an integer number (6372360).

Almost surely, 2^165480678 is an apocalyptic number.

165480678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165480678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203915520).

165480678 is an abundant number, since it is smaller than the sum of its proper divisors (242350362).

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

165480678 is a wasteful number, since it uses less digits than its factorization.

165480678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 165480678 is about 12863.9293374925. The cubic root of 165480678 is about 549.0127501593.

The spelling of 165480678 in words is "one hundred sixty-five million, four hundred eighty thousand, six hundred seventy-eight".