65045453161 has 16 divisors (see below), whose sum is σ = 70359045120. Its totient is φ = 59776536960.

The previous prime is 65045453149. The next prime is 65045453167. The reversal of 65045453161 is 16135454056.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 65045453161 - 2¹¹ = 65045451113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65045453167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4592056 + ... + 4606198.

It is an arithmetic number, because the mean of its divisors is an integer number (4397440320).

Almost surely, 2^65045453161 is an apocalyptic number.

It is an amenable number.

65045453161 is a deficient number, since it is larger than the sum of its proper divisors (5313591959).

65045453161 is a wasteful number, since it uses less digits than its factorization.

65045453161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 65045453161 in words is "sixty-five billion, forty-five million, four hundred fifty-three thousand, one hundred sixty-one".