660061105 has 8 divisors (see below), whose sum is σ = 864080064. Its totient is φ = 480044400.

The previous prime is 660061027. The next prime is 660061111. The reversal of 660061105 is 501160066.

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

It is not a de Polignac number, because 660061105 - 2⁹ = 660060593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660061105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6000501 + ... + 6000610.

It is an arithmetic number, because the mean of its divisors is an integer number (108010008).

Almost surely, 2^660061105 is an apocalyptic number.

It is an amenable number.

660061105 is a deficient number, since it is larger than the sum of its proper divisors (204018959).

660061105 is a wasteful number, since it uses less digits than its factorization.

660061105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001127.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 660061105 is about 25691.6543842548. The cubic root of 660061105 is about 870.6856377852.

The spelling of 660061105 in words is "six hundred sixty million, sixty-one thousand, one hundred five".