65660151606161 has 8 divisors (see below), whose sum is σ = 75057817354944. Its totient is φ = 56266896880080.

The previous prime is 65660151606149. The next prime is 65660151606167. The reversal of 65660151606161 is 16160615106656.

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 65660151606161 - 2¹⁰ = 65660151605137 is a prime.

It is a super-2 number, since 2×65660151606161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65660151606167) 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, 1102723775 + ... + 1102783316.

It is an arithmetic number, because the mean of its divisors is an integer number (9382227169368).

Almost surely, 2^{65660151606161} is an apocalyptic number.

It is an amenable number.

65660151606161 is a deficient number, since it is larger than the sum of its proper divisors (9397665748783).

65660151606161 is a wasteful number, since it uses less digits than its factorization.

65660151606161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205511351.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 65660151606161 in words is "sixty-five trillion, six hundred sixty billion, one hundred fifty-one million, six hundred six thousand, one hundred sixty-one".