1016511606 has 80 divisors (see below), whose sum is σ = 2545594128. Its totient is φ = 300499200.

The previous prime is 1016511593. The next prime is 1016511623. The reversal of 1016511606 is 6061156101.

1016511606 is a `hidden beast` number, since 1 + 0 + 1 + 6 + 51 + 1 + 606 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1016511606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 66106 + ... + 80018.

Almost surely, 2^1016511606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1016511606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272797064).

1016511606 is an abundant number, since it is smaller than the sum of its proper divisors (1529082522).

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

1016511606 is a wasteful number, since it uses less digits than its factorization.

1016511606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979 (or 13970 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1016511606 is about 31882.7791448613. The cubic root of 1016511606 is about 1005.4738509513.

Adding to 1016511606 its reverse (6061156101), we get a palindrome (7077667707).

The spelling of 1016511606 in words is "one billion, sixteen million, five hundred eleven thousand, six hundred six".