660562120 has 16 divisors (see below), whose sum is σ = 1486264860. Its totient is φ = 264224832.

The previous prime is 660562099. The next prime is 660562121. The reversal of 660562120 is 21265066.

660562120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 601917156 + 58644964 = 24534^2 + 7658^2 .

It is not an unprimeable number, because it can be changed into a prime (660562121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8256987 + ... + 8257066.

Almost surely, 2^660562120 is an apocalyptic number.

It is an amenable number.

660562120 is an abundant number, since it is smaller than the sum of its proper divisors (825702740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660562120 is a wasteful number, since it uses less digits than its factorization.

660562120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16514064 (or 16514060 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 660562120 is about 25701.4030745405. The cubic root of 660562120 is about 870.9058781217.

The spelling of 660562120 in words is "six hundred sixty million, five hundred sixty-two thousand, one hundred twenty".