65220160 has 112 divisors (see below), whose sum is σ = 173370240. Its totient is φ = 23224320.

The previous prime is 65220151. The next prime is 65220167. The reversal of 65220160 is 6102256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103045 + ... + 103675.

Almost surely, 2^65220160 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 65220160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86685120).

65220160 is an abundant number, since it is smaller than the sum of its proper divisors (108150080).

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

65220160 is a wasteful number, since it uses less digits than its factorization.

65220160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65220160 is about 8075.8999498508. The cubic root of 65220160 is about 402.5260145474.

The spelling of 65220160 in words is "sixty-five million, two hundred twenty thousand, one hundred sixty".