65144293013750 has 20 divisors (see below), whose sum is σ = 122106462827316. Its totient is φ = 26057717205000.

The previous prime is 65144293013747. The next prime is 65144293013873. The reversal of 65144293013750 is 5731039244156.

It is a super-2 number, since 2×65144293013750² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26057715956 + ... + 26057718455.

Almost surely, 2^{65144293013750} is an apocalyptic number.

65144293013750 is a deficient number, since it is larger than the sum of its proper divisors (56962169813566).

65144293013750 is an equidigital number, since it uses as much as digits as its factorization.

65144293013750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52115434433 (or 52115434418 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 65144293013750 in words is "sixty-five trillion, one hundred forty-four billion, two hundred ninety-three million, thirteen thousand, seven hundred fifty".