660160065 has 64 divisors (see below), whose sum is σ = 1154829312. Its totient is φ = 320716800.

The previous prime is 660160021. The next prime is 660160079. The reversal of 660160065 is 560061066.

660160065 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 660160065 - 2⁶ = 660160001 is a prime.

It is a super-2 number, since 2×660160065² = 871622622841608450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2435880 + ... + 2436150.

It is an arithmetic number, because the mean of its divisors is an integer number (18044208).

Almost surely, 2^660160065 is an apocalyptic number.

It is an amenable number.

660160065 is a deficient number, since it is larger than the sum of its proper divisors (494669247).

660160065 is a wasteful number, since it uses less digits than its factorization.

660160065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 660160065 is about 25693.5802293102. The cubic root of 660160065 is about 870.7291482746.

It can be divided in two parts, 6601 and 60065, that added together give a palindrome (66666).

The spelling of 660160065 in words is "six hundred sixty million, one hundred sixty thousand, sixty-five".