65633484220 has 12 divisors (see below), whose sum is σ = 137830316904. Its totient is φ = 26253393680.

The previous prime is 65633484173. The next prime is 65633484223. The reversal of 65633484220 is 2248433656.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65633484223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640837086 + ... + 1640837125.

It is an arithmetic number, because the mean of its divisors is an integer number (11485859742).

Almost surely, 2^65633484220 is an apocalyptic number.

It is an amenable number.

65633484220 is an abundant number, since it is smaller than the sum of its proper divisors (72196832684).

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

65633484220 is a wasteful number, since it uses less digits than its factorization.

65633484220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281674220 (or 3281674218 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 65633484220 in words is "sixty-five billion, six hundred thirty-three million, four hundred eighty-four thousand, two hundred twenty".