65143970337509 has 32 divisors (see below), whose sum is σ = 76210796353536. Its totient is φ = 54532198607040.

The previous prime is 65143970337503. The next prime is 65143970337569. The reversal of 65143970337509 is 90573307934156.

It is not a de Polignac number, because 65143970337509 - 2²⁰ = 65143969288933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65143970337503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738239939 + ... + 738328175.

It is an arithmetic number, because the mean of its divisors is an integer number (2381587386048).

Almost surely, 2^{65143970337509} is an apocalyptic number.

It is an amenable number.

65143970337509 is a deficient number, since it is larger than the sum of its proper divisors (11066826016027).

65143970337509 is a wasteful number, since it uses less digits than its factorization.

65143970337509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102305.

The product of its (nonzero) digits is 64297800, while the sum is 62.

The spelling of 65143970337509 in words is "sixty-five trillion, one hundred forty-three billion, nine hundred seventy million, three hundred thirty-seven thousand, five hundred nine".