660116005 has 32 divisors (see below), whose sum is σ = 830358144. Its totient is φ = 503387136.

The previous prime is 660115969. The next prime is 660116027. The reversal of 660116005 is 500611066.

It is a cyclic number.

It is not a de Polignac number, because 660116005 - 2⁷ = 660115877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2150062 + ... + 2150368.

It is an arithmetic number, because the mean of its divisors is an integer number (25948692).

Almost surely, 2^660116005 is an apocalyptic number.

It is an amenable number.

660116005 is a deficient number, since it is larger than the sum of its proper divisors (170242139).

660116005 is a wasteful number, since it uses less digits than its factorization.

660116005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

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

The square root of 660116005 is about 25692.7228023812. The cubic root of 660116005 is about 870.7097766192.

The spelling of 660116005 in words is "six hundred sixty million, one hundred sixteen thousand, five".