65315426432 has 16 divisors (see below), whose sum is σ = 130120576350. Its totient is φ = 32657713152.

The previous prime is 65315426413. The next prime is 65315426441. The reversal of 65315426432 is 23462451356.

It can be written as a sum of positive squares in only one way, i.e., 48305006656 + 17010419776 = 219784^2 + 130424^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×65315426432² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65315426432.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255138257 + ... + 255138512.

Almost surely, 2^65315426432 is an apocalyptic number.

It is an amenable number.

65315426432 is a deficient number, since it is larger than the sum of its proper divisors (64805149918).

65315426432 is an equidigital number, since it uses as much as digits as its factorization.

65315426432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510276783 (or 510276771 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

Adding to 65315426432 its reverse (23462451356), we get a palindrome (88777877788).

The spelling of 65315426432 in words is "sixty-five billion, three hundred fifteen million, four hundred twenty-six thousand, four hundred thirty-two".