1068021516 has 24 divisors (see below), whose sum is σ = 2511077184. Its totient is φ = 353289040.

The previous prime is 1068021509. The next prime is 1068021527. The reversal of 1068021516 is 6151208601.

It is a super-2 number, since 2×1068021516² = 2281339917277876512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338130 + ... + 341273.

It is an arithmetic number, because the mean of its divisors is an integer number (104628216).

Almost surely, 2^1068021516 is an apocalyptic number.

It is an amenable number.

1068021516 is an abundant number, since it is smaller than the sum of its proper divisors (1443055668).

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

1068021516 is a wasteful number, since it uses less digits than its factorization.

1068021516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679541 (or 679539 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1068021516 is about 32680.5984645324. The cubic root of 1068021516 is about 1022.1783242561.

The spelling of 1068021516 in words is "one billion, sixty-eight million, twenty-one thousand, five hundred sixteen".