65532180 has 96 divisors (see below), whose sum is σ = 215421696. Its totient is φ = 14570496.

The previous prime is 65532179. The next prime is 65532191. The reversal of 65532180 is 8123556.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 13432 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (2243976).

Almost surely, 2^65532180 is an apocalyptic number.

65532180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65532180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107710848).

65532180 is an abundant number, since it is smaller than the sum of its proper divisors (149889516).

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

65532180 is a wasteful number, since it uses less digits than its factorization.

65532180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 65532180 is about 8095.1948710331. The cubic root of 65532180 is about 403.1669023206.

The spelling of 65532180 in words is "sixty-five million, five hundred thirty-two thousand, one hundred eighty".