65632104120 has 128 divisors (see below), whose sum is σ = 214871408640. Its totient is φ = 15905226240.

The previous prime is 65632104103. The next prime is 65632104121. The reversal of 65632104120 is 2140123656.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65632104121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4722622 + ... + 4736498.

It is an arithmetic number, because the mean of its divisors is an integer number (1678682880).

Almost surely, 2^65632104120 is an apocalyptic number.

65632104120 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 65632104120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107435704320).

65632104120 is an abundant number, since it is smaller than the sum of its proper divisors (149239304520).

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

65632104120 is a wasteful number, since it uses less digits than its factorization.

65632104120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485 (or 17481 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 65632104120 its reverse (2140123656), we get a palindrome (67772227776).

The spelling of 65632104120 in words is "sixty-five billion, six hundred thirty-two million, one hundred four thousand, one hundred twenty".