65145710573 has 8 divisors (see below), whose sum is σ = 65665729848. Its totient is φ = 64627340544.

The previous prime is 65145710563. The next prime is 65145710579. The reversal of 65145710573 is 37501754156.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34729304164 + 30416406409 = 186358^2 + 174403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65145710573 - 2¹⁴ = 65145694189 is a prime.

It is a super-2 number, since 2×65145710573² (a number of 22 digits) contains 22 as substring.

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 (65145710579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332936 + ... + 491057.

It is an arithmetic number, because the mean of its divisors is an integer number (8208216231).

Almost surely, 2^65145710573 is an apocalyptic number.

It is an amenable number.

65145710573 is a deficient number, since it is larger than the sum of its proper divisors (520019275).

65145710573 is a wasteful number, since it uses less digits than its factorization.

65145710573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824623.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 65145710573 in words is "sixty-five billion, one hundred forty-five million, seven hundred ten thousand, five hundred seventy-three".