65733352161 has 4 divisors (see below), whose sum is σ = 87644469552. Its totient is φ = 43822234772.

The previous prime is 65733352133. The next prime is 65733352177. The reversal of 65733352161 is 16125333756.

65733352161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65733352161 - 2¹⁷ = 65733221089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65733352121) 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, 10955558691 + ... + 10955558696.

It is an arithmetic number, because the mean of its divisors is an integer number (21911117388).

Almost surely, 2^65733352161 is an apocalyptic number.

It is an amenable number.

65733352161 is a deficient number, since it is larger than the sum of its proper divisors (21911117391).

65733352161 is a wasteful number, since it uses less digits than its factorization.

65733352161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21911117390.

The product of its digits is 340200, while the sum is 42.

The spelling of 65733352161 in words is "sixty-five billion, seven hundred thirty-three million, three hundred fifty-two thousand, one hundred sixty-one".