11680515 has 48 divisors (see below), whose sum is σ = 25249536. Its totient is φ = 4852800.

The previous prime is 11680489. The next prime is 11680519. The reversal of 11680515 is 51508611.

It is not a de Polignac number, because 11680515 - 2¹⁰ = 11679491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11680519) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1780 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (526032).

Almost surely, 2^11680515 is an apocalyptic number.

11680515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11680515 is an abundant number, since it is smaller than the sum of its proper divisors (13569021).

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

11680515 is a wasteful number, since it uses less digits than its factorization.

11680515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400 (or 3397 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 11680515 is about 3417.6768425350. The cubic root of 11680515 is about 226.8927734636.

The spelling of 11680515 in words is "eleven million, six hundred eighty thousand, five hundred fifteen".