11660538 has 16 divisors (see below), whose sum is σ = 24693120. Its totient is φ = 3658176.

The previous prime is 11660503. The next prime is 11660549. The reversal of 11660538 is 83506611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57058 + ... + 57261.

It is an arithmetic number, because the mean of its divisors is an integer number (1543320).

Almost surely, 2^11660538 is an apocalyptic number.

11660538 is an abundant number, since it is smaller than the sum of its proper divisors (13032582).

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

11660538 is a wasteful number, since it uses less digits than its factorization.

11660538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114341.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 11660538 is about 3414.7529925311. The cubic root of 11660538 is about 226.7633492779.

The spelling of 11660538 in words is "eleven million, six hundred sixty thousand, five hundred thirty-eight".