65243023424 has 28 divisors (see below), whose sum is σ = 131105452800. Its totient is φ = 32208578688.

The previous prime is 65243023399. The next prime is 65243023427. The reversal of 65243023424 is 42432034256.

It is a happy number.

It is a super-2 number, since 2×65243023424² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65243023427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6446984 + ... + 6457095.

It is an arithmetic number, because the mean of its divisors is an integer number (4682337600).

Almost surely, 2^65243023424 is an apocalyptic number.

65243023424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65243023424 is an abundant number, since it is smaller than the sum of its proper divisors (65862429376).

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

65243023424 is a wasteful number, since it uses less digits than its factorization.

65243023424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12904170 (or 12904160 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

The spelling of 65243023424 in words is "sixty-five billion, two hundred forty-three million, twenty-three thousand, four hundred twenty-four".