1650066 has 32 divisors (see below), whose sum is σ = 3760128. Its totient is φ = 477840.

The previous prime is 1650059. The next prime is 1650079. The reversal of 1650066 is 6600561.

It is a Curzon number.

It is a nialpdrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (117504).

2^1650066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880064).

1650066 is an abundant number, since it is smaller than the sum of its proper divisors (2110062).

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

1650066 is a wasteful number, since it uses less digits than its factorization.

1650066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126.

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

The square root of 1650066 is about 1284.5489480748. The cubic root of 1650066 is about 118.1681505801.

The spelling of 1650066 in words is "one million, six hundred fifty thousand, sixty-six".