65000180 has 96 divisors (see below), whose sum is σ = 170698752. Its totient is φ = 20275200.

The previous prime is 65000179. The next prime is 65000209. The reversal of 65000180 is 8100056.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73340 + ... + 74220.

It is an arithmetic number, because the mean of its divisors is an integer number (1778112).

Almost surely, 2^65000180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65000180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85349376).

65000180 is an abundant number, since it is smaller than the sum of its proper divisors (105698572).

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

65000180 is a wasteful number, since it uses less digits than its factorization.

65000180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 65000180 is about 8062.2689114169. The cubic root of 65000180 is about 402.0729470025.

The spelling of 65000180 in words is "sixty-five million, one hundred eighty", and thus it is an aban number.