65351308032 has 216 divisors, whose sum is σ = 205690663360. Its totient is φ = 20636881920.

The previous prime is 65351308021. The next prime is 65351308069. The reversal of 65351308032 is 23080315356.

65351308032 is a `hidden beast` number, since 6 + 535 + 13 + 0 + 80 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a super-2 number, since 2×65351308032² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1154307 + ... + 1209597.

Almost surely, 2^65351308032 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 65351308032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102845331680).

65351308032 is an abundant number, since it is smaller than the sum of its proper divisors (140339355328).

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

65351308032 is an equidigital number, since it uses as much as digits as its factorization.

65351308032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55341 (or 55315 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 65351308032 in words is "sixty-five billion, three hundred fifty-one million, three hundred eight thousand, thirty-two".