165180530 has 16 divisors (see below), whose sum is σ = 302365440. Its totient is φ = 64952112.

The previous prime is 165180467. The next prime is 165180539. The reversal of 165180530 is 35081561.

165180530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 165180493 and 165180502.

It is not an unprimeable number, because it can be changed into a prime (165180539) 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, 139394 + ... + 140573.

It is an arithmetic number, because the mean of its divisors is an integer number (18897840).

Almost surely, 2^165180530 is an apocalyptic number.

165180530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165180530 is a deficient number, since it is larger than the sum of its proper divisors (137184910).

165180530 is a wasteful number, since it uses less digits than its factorization.

165180530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280033.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 165180530 is about 12852.2577783049. The cubic root of 165180530 is about 548.6806171066.

The spelling of 165180530 in words is "one hundred sixty-five million, one hundred eighty thousand, five hundred thirty".