11661594 has 16 divisors (see below), whose sum is σ = 26655168. Its totient is φ = 3331872.

The previous prime is 11661571. The next prime is 11661607. The reversal of 11661594 is 49516611.

11661594 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 138787 + ... + 138870.

It is an arithmetic number, because the mean of its divisors is an integer number (1665948).

Almost surely, 2^11661594 is an apocalyptic number.

11661594 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11661594 is an abundant number, since it is smaller than the sum of its proper divisors (14993574).

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

11661594 is a wasteful number, since it uses less digits than its factorization.

11661594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277669.

The product of its digits is 6480, while the sum is 33.

The square root of 11661594 is about 3414.9076122203. The cubic root of 11661594 is about 226.7701944415.

The spelling of 11661594 in words is "eleven million, six hundred sixty-one thousand, five hundred ninety-four".