1016856516 has 96 divisors (see below), whose sum is σ = 2740832640. Its totient is φ = 290774016.

The previous prime is 1016856481. The next prime is 1016856523. The reversal of 1016856516 is 6156586101.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153856 + ... + 160328.

It is an arithmetic number, because the mean of its divisors is an integer number (28550340).

Almost surely, 2^1016856516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1016856516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370416320).

1016856516 is an abundant number, since it is smaller than the sum of its proper divisors (1723976124).

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

1016856516 is a wasteful number, since it uses less digits than its factorization.

1016856516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1016856516 is about 31888.1877189658. The cubic root of 1016856516 is about 1005.5875596939.

The spelling of 1016856516 in words is "one billion, sixteen million, eight hundred fifty-six thousand, five hundred sixteen".