65324931456 has 128 divisors (see below), whose sum is σ = 178438636800. Its totient is φ = 21159180288.

The previous prime is 65324931409. The next prime is 65324931509. The reversal of 65324931456 is 65413942356.

65324931456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13054651 + ... + 13059653.

It is an arithmetic number, because the mean of its divisors is an integer number (1394051850).

Almost surely, 2^65324931456 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 65324931456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89219318400).

65324931456 is an abundant number, since it is smaller than the sum of its proper divisors (113113705344).

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

65324931456 is a wasteful number, since it uses less digits than its factorization.

65324931456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976 (or 5964 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 65324931456 in words is "sixty-five billion, three hundred twenty-four million, nine hundred thirty-one thousand, four hundred fifty-six".