1089559616 has 14 divisors (see below), whose sum is σ = 2162094990. Its totient is φ = 544779776.

The previous prime is 1089559607. The next prime is 1089559633. The reversal of 1089559616 is 6169559801.

It can be written as a sum of positive squares in only one way, i.e., 1075840000 + 13719616 = 32800^2 + 3704^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8512121 + ... + 8512248.

Almost surely, 2^1089559616 is an apocalyptic number.

1089559616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1089559616 is a deficient number, since it is larger than the sum of its proper divisors (1072535374).

1089559616 is an equidigital number, since it uses as much as digits as its factorization.

1089559616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024381 (or 17024371 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 1089559616 is about 33008.4779412805. The cubic root of 1089559616 is about 1029.0038491628.

The spelling of 1089559616 in words is "one billion, eighty-nine million, five hundred fifty-nine thousand, six hundred sixteen".