65332131012 has 96 divisors (see below), whose sum is σ = 173434060800. Its totient is φ = 21256766496.

The previous prime is 65332130999. The next prime is 65332131013. The reversal of 65332131012 is 21013123356.

65332131012 is a `hidden beast` number, since 6 + 5 + 332 + 1 + 310 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (65332131013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8722333 + ... + 8729819.

It is an arithmetic number, because the mean of its divisors is an integer number (1806604800).

Almost surely, 2^65332131012 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 65332131012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86717030400).

65332131012 is an abundant number, since it is smaller than the sum of its proper divisors (108101929788).

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

65332131012 is a wasteful number, since it uses less digits than its factorization.

65332131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9422 (or 9414 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 65332131012 its reverse (21013123356), we get a palindrome (86345254368).

The spelling of 65332131012 in words is "sixty-five billion, three hundred thirty-two million, one hundred thirty-one thousand, twelve".