65334147712 has 256 divisors, whose sum is σ = 144075571200. Its totient is φ = 29436825600.

The previous prime is 65334147667. The next prime is 65334147721. The reversal of 65334147712 is 21774143356.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498733887 + ... + 498734017.

It is an arithmetic number, because the mean of its divisors is an integer number (562795200).

Almost surely, 2^65334147712 is an apocalyptic number.

65334147712 is a gapful number since it is divisible by the number (62) 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 65334147712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72037785600).

65334147712 is an abundant number, since it is smaller than the sum of its proper divisors (78741423488).

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

65334147712 is a wasteful number, since it uses less digits than its factorization.

65334147712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 323 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The spelling of 65334147712 in words is "sixty-five billion, three hundred thirty-four million, one hundred forty-seven thousand, seven hundred twelve".