11660416 has 16 divisors (see below), whose sum is σ = 23229990. Its totient is φ = 5830144.

The previous prime is 11660413. The next prime is 11660443. The reversal of 11660416 is 61406611.

It can be written as a sum of positive squares in only one way, i.e., 8065600 + 3594816 = 2840^2 + 1896^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (11660413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45421 + ... + 45676.

Almost surely, 2^11660416 is an apocalyptic number.

11660416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11660416 is a deficient number, since it is larger than the sum of its proper divisors (11569574).

11660416 is an frugal number, since it uses more digits than its factorization.

11660416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91111 (or 91099 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 11660416 is about 3414.7351288204. The cubic root of 11660416 is about 226.7625584275.

The spelling of 11660416 in words is "eleven million, six hundred sixty thousand, four hundred sixteen".