65401846161 has 8 divisors (see below), whose sum is σ = 87304218144. Its totient is φ = 43550352480.

The previous prime is 65401846109. The next prime is 65401846187. The reversal of 65401846161 is 16164810456.

65401846161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65401846161 - 2¹¹ = 65401844113 is a prime.

It is a super-2 number, since 2×65401846161² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65401846061) 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, 12716575 + ... + 12721716.

It is an arithmetic number, because the mean of its divisors is an integer number (10913027268).

Almost surely, 2^65401846161 is an apocalyptic number.

It is an amenable number.

65401846161 is a deficient number, since it is larger than the sum of its proper divisors (21902371983).

65401846161 is a wasteful number, since it uses less digits than its factorization.

65401846161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25439151.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 65401846161 in words is "sixty-five billion, four hundred one million, eight hundred forty-six thousand, one hundred sixty-one".