660161160065 has 16 divisors (see below), whose sum is σ = 866263761216. Its totient is φ = 478976769600.

The previous prime is 660161160049. The next prime is 660161160067. The reversal of 660161160065 is 560061161066.

It is a happy number.

660161160065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660161160065 - 2⁴ = 660161160049 is a prime.

It is a super-3 number, since 3×660161160065³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660161160067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14232107 + ... + 14278416.

It is an arithmetic number, because the mean of its divisors is an integer number (54141485076).

Almost surely, 2^660161160065 is an apocalyptic number.

It is an amenable number.

660161160065 is a deficient number, since it is larger than the sum of its proper divisors (206102601151).

660161160065 is a wasteful number, since it uses less digits than its factorization.

660161160065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28510960.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 660161160065 in words is "six hundred sixty billion, one hundred sixty-one million, one hundred sixty thousand, sixty-five".