65303552832 has 168 divisors, whose sum is σ = 202158514656. Its totient is φ = 18549844992.

The previous prime is 65303552813. The next prime is 65303552857. The reversal of 65303552832 is 23825530356.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1607523 + ... + 1647645.

It is an arithmetic number, because the mean of its divisors is an integer number (1203324492).

Almost surely, 2^65303552832 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 65303552832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101079257328).

65303552832 is an abundant number, since it is smaller than the sum of its proper divisors (136854961824).

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

65303552832 is a wasteful number, since it uses less digits than its factorization.

65303552832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40325 (or 40308 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 65303552832 in words is "sixty-five billion, three hundred three million, five hundred fifty-two thousand, eight hundred thirty-two".