1016660 has 12 divisors (see below), whose sum is σ = 2135028. Its totient is φ = 406656.

The previous prime is 1016641. The next prime is 1016663. The reversal of 1016660 is 666101.

1016660 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 432964 + 583696 = 658^2 + 764^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 50833 = 1016660 / (1 + 0 + 1 + 6 + 6 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016663) 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, 25397 + ... + 25436.

It is an arithmetic number, because the mean of its divisors is an integer number (177919).

2^1016660 is an apocalyptic number.

1016660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1016660 is an abundant number, since it is smaller than the sum of its proper divisors (1118368).

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

1016660 is a wasteful number, since it uses less digits than its factorization.

1016660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50842 (or 50840 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1016660 is about 1008.2955915802. The cubic root of 1016660 is about 100.5522776127.

It can be divided in two parts, 10166 and 60, that multiplied together give a triangular number (609960 = T₁₁₀₄).

The spelling of 1016660 in words is "one million, sixteen thousand, six hundred sixty".