1020063816 has 96 divisors (see below), whose sum is σ = 2814289920. Its totient is φ = 333715200.

The previous prime is 1020063809. The next prime is 1020063827. The reversal of 1020063816 is 6183600201.

1020063816 is a `hidden beast` number, since 1 + 0 + 20 + 0 + 638 + 1 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1020063816.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1957636 + ... + 1958156.

It is an arithmetic number, because the mean of its divisors is an integer number (29315520).

Almost surely, 2^1020063816 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 1020063816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407144960).

1020063816 is an abundant number, since it is smaller than the sum of its proper divisors (1794226104).

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

1020063816 is a wasteful number, since it uses less digits than its factorization.

1020063816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1020063816 is about 31938.4379079504. The cubic root of 1020063816 is about 1006.6437021402.

The spelling of 1020063816 in words is "one billion, twenty million, sixty-three thousand, eight hundred sixteen".