65634160220 has 24 divisors (see below), whose sum is σ = 143824421664. Its totient is φ = 25112200256.

The previous prime is 65634160199. The next prime is 65634160223. The reversal of 65634160220 is 2206143656.

It is a happy number.

65634160220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65634160223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71341019 + ... + 71341938.

It is an arithmetic number, because the mean of its divisors is an integer number (5992684236).

Almost surely, 2^65634160220 is an apocalyptic number.

It is an amenable number.

65634160220 is an abundant number, since it is smaller than the sum of its proper divisors (78190261444).

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

65634160220 is a wasteful number, since it uses less digits than its factorization.

65634160220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142682989 (or 142682987 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 65634160220 in words is "sixty-five billion, six hundred thirty-four million, one hundred sixty thousand, two hundred twenty".