11151616 has 72 divisors (see below), whose sum is σ = 26163200. Its totient is φ = 4741632.

The previous prime is 11151589. The next prime is 11151653. The reversal of 11151616 is 61615111.

It is a super-2 number, since 2×11151616² = 248717078822912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87745 + ... + 87871.

Almost surely, 2^11151616 is an apocalyptic number.

11151616 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 11151616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13081600).

11151616 is an abundant number, since it is smaller than the sum of its proper divisors (15011584).

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

11151616 is an frugal number, since it uses more digits than its factorization.

11151616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 136 counting only the distinct ones).

The product of its digits is 180, while the sum is 22.

The square root of 11151616 is about 3339.4035395561. The cubic root of 11151616 is about 223.4151409416.

Adding to 11151616 its reverse (61615111), we get a palindrome (72766727).

It can be divided in two parts, 1115161 and 6, that multiplied together give a palindrome (6690966).

The spelling of 11151616 in words is "eleven million, one hundred fifty-one thousand, six hundred sixteen".