1101081616 has 40 divisors (see below), whose sum is σ = 2251641600. Its totient is φ = 520168320.

The previous prime is 1101081613. The next prime is 1101081617. The reversal of 1101081616 is 6161801011.

It is not an unprimeable number, because it can be changed into a prime (1101081613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113601 + ... + 122911.

It is an arithmetic number, because the mean of its divisors is an integer number (56291040).

Almost surely, 2^1101081616 is an apocalyptic number.

1101081616 is a gapful number since it is divisible by the number (16) 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 1101081616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125820800).

1101081616 is an abundant number, since it is smaller than the sum of its proper divisors (1150559984).

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

1101081616 is a wasteful number, since it uses less digits than its factorization.

1101081616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727 (or 9721 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1101081616 is about 33182.5498718830. The cubic root of 1101081616 is about 1032.6183472540.

Adding to 1101081616 its reverse (6161801011), we get a palindrome (7262882627).

The spelling of 1101081616 in words is "one billion, one hundred one million, eighty-one thousand, six hundred sixteen".