660010605 has 16 divisors (see below), whose sum is σ = 1068742080. Its totient is φ = 347763968.

The previous prime is 660010597. The next prime is 660010609. The reversal of 660010605 is 506010066.

It is a cyclic number.

It is not a de Polignac number, because 660010605 - 2³ = 660010597 is a prime.

It is a super-2 number, since 2×660010605² = 871227997424932050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660010609) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 263820 + ... + 266309.

It is an arithmetic number, because the mean of its divisors is an integer number (66796380).

Almost surely, 2^660010605 is an apocalyptic number.

It is an amenable number.

660010605 is a deficient number, since it is larger than the sum of its proper divisors (408731475).

660010605 is a wasteful number, since it uses less digits than its factorization.

660010605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530220.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 660010605 is about 25690.6715560337. The cubic root of 660010605 is about 870.6634323935.

It can be divided in two parts, 6600 and 10605, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 660010605 in words is "six hundred sixty million, ten thousand, six hundred five".