1115605616 has 20 divisors (see below), whose sum is σ = 2255464272. Its totient is φ = 533550336.

The previous prime is 1115605609. The next prime is 1115605657. The reversal of 1115605616 is 6165065111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515401 + ... + 1516136.

Almost surely, 2^1115605616 is an apocalyptic number.

1115605616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1115605616 is an abundant number, since it is smaller than the sum of its proper divisors (1139858656).

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

1115605616 is a wasteful number, since it uses less digits than its factorization.

1115605616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031568 (or 3031562 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1115605616 is about 33400.6828672708. The cubic root of 1115605616 is about 1037.1388370040.

The spelling of 1115605616 in words is "one billion, one hundred fifteen million, six hundred five thousand, six hundred sixteen".