1099390909608 has 96 divisors (see below), whose sum is σ = 3053126419200. Its totient is φ = 357193476864.

The previous prime is 1099390909601. The next prime is 1099390909613. The reversal of 1099390909608 is 8069090939901.

1099390909608 is a `hidden beast` number, since 10 + 9 + 9 + 3 + 9 + 0 + 9 + 0 + 9 + 608 = 666.

It is not an unprimeable number, because it can be changed into a prime (1099390909601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1112316 + ... + 1853652.

It is an arithmetic number, because the mean of its divisors is an integer number (31803400200).

Almost surely, 2^{1099390909608} is an apocalyptic number.

1099390909608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099390909608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526563209600).

1099390909608 is an abundant number, since it is smaller than the sum of its proper divisors (1953735509592).

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

1099390909608 is a wasteful number, since it uses less digits than its factorization.

1099390909608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741871 (or 741864 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 63.

The spelling of 1099390909608 in words is "one trillion, ninety-nine billion, three hundred ninety million, nine hundred nine thousand, six hundred eight".