65243123445 has 8 divisors (see below), whose sum is σ = 104388997536. Its totient is φ = 34796332496.

The previous prime is 65243123431. The next prime is 65243123453. The reversal of 65243123445 is 54432134256.

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 65243123445 - 2²² = 65238929141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174770767 + ... + 2174770796.

It is an arithmetic number, because the mean of its divisors is an integer number (13048624692).

Almost surely, 2^65243123445 is an apocalyptic number.

It is an amenable number.

65243123445 is a deficient number, since it is larger than the sum of its proper divisors (39145874091).

65243123445 is a wasteful number, since it uses less digits than its factorization.

65243123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4349541571.

The product of its digits is 345600, while the sum is 39.

The spelling of 65243123445 in words is "sixty-five billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred forty-five".