11613616 has 40 divisors (see below), whose sum is σ = 26005280. Its totient is φ = 4921344.

The previous prime is 11613593. The next prime is 11613629. The reversal of 11613616 is 61631611.

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 in 7 ways as a sum of consecutive naturals, for example, 10330 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (650132).

Almost surely, 2^11613616 is an apocalyptic number.

11613616 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 11613616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13002640).

11613616 is an abundant number, since it is smaller than the sum of its proper divisors (14391664).

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

11613616 is a wasteful number, since it uses less digits than its factorization.

11613616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1175 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 11613616 is about 3407.8755845835. The cubic root of 11613616 is about 226.4587751692.

The spelling of 11613616 in words is "eleven million, six hundred thirteen thousand, six hundred sixteen".