65523541071049 has 4 divisors (see below), whose sum is σ = 65940888466564. Its totient is φ = 65106193675536.

The previous prime is 65523541071041. The next prime is 65523541071071. The reversal of 65523541071049 is 94017014532556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49605356213449 + 15918184857600 = 7043107^2 + 3989760^2 .

It is a cyclic number.

It is not a de Polignac number, because 65523541071049 - 2³ = 65523541071041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65523541070987 and 65523541071005.

It is not an unprimeable number, because it can be changed into a prime (65523541071041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208673697522 + ... + 208673697835.

It is an arithmetic number, because the mean of its divisors is an integer number (16485222116641).

Almost surely, 2^{65523541071049} is an apocalyptic number.

It is an amenable number.

65523541071049 is a deficient number, since it is larger than the sum of its proper divisors (417347395515).

65523541071049 is a wasteful number, since it uses less digits than its factorization.

65523541071049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417347395514.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 65523541071049 in words is "sixty-five trillion, five hundred twenty-three billion, five hundred forty-one million, seventy-one thousand, forty-nine".