1096781668 has 12 divisors (see below), whose sum is σ = 1922483052. Its totient is φ = 547500800.

The previous prime is 1096781663. The next prime is 1096781687. The reversal of 1096781668 is 8661876901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 437730084 + 659051584 = 20922^2 + 25672^2 .

It is not an unprimeable number, because it can be changed into a prime (1096781663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219733 + ... + 224668.

It is an arithmetic number, because the mean of its divisors is an integer number (160206921).

Almost surely, 2^1096781668 is an apocalyptic number.

It is an amenable number.

1096781668 is a deficient number, since it is larger than the sum of its proper divisors (825701384).

1096781668 is a wasteful number, since it uses less digits than its factorization.

1096781668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445022 (or 445020 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 1096781668 is about 33117.6941830194. The cubic root of 1096781668 is about 1031.2723986662.

The spelling of 1096781668 in words is "one billion, ninety-six million, seven hundred eighty-one thousand, six hundred sixty-eight".