165080780 has 24 divisors (see below), whose sum is σ = 347061120. Its totient is φ = 65957760.

The previous prime is 165080767. The next prime is 165080819. The reversal of 165080780 is 87080561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 165080780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15656 + ... + 23984.

It is an arithmetic number, because the mean of its divisors is an integer number (14460880).

Almost surely, 2^165080780 is an apocalyptic number.

165080780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165080780 is an abundant number, since it is smaller than the sum of its proper divisors (181980340).

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

165080780 is a wasteful number, since it uses less digits than its factorization.

165080780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329 (or 9327 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 165080780 is about 12848.3765511445. The cubic root of 165080780 is about 548.5701482511.

The spelling of 165080780 in words is "one hundred sixty-five million, eighty thousand, seven hundred eighty".