65020164 has 48 divisors (see below), whose sum is σ = 167178816. Its totient is φ = 19504000.

The previous prime is 65020159. The next prime is 65020177. The reversal of 65020164 is 46102056.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10894 + ... + 15770.

It is an arithmetic number, because the mean of its divisors is an integer number (3482892).

Almost surely, 2^65020164 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 65020164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83589408).

65020164 is an abundant number, since it is smaller than the sum of its proper divisors (102158652).

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

65020164 is a wasteful number, since it uses less digits than its factorization.

65020164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996 (or 4994 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65020164 is about 8063.5081695252. The cubic root of 65020164 is about 402.1141479267.

The spelling of 65020164 in words is "sixty-five million, twenty thousand, one hundred sixty-four".