11661054 has 16 divisors (see below), whose sum is σ = 23355648. Its totient is φ = 3881432.

The previous prime is 11661037. The next prime is 11661059. The reversal of 11661054 is 45016611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7099 + ... + 8585.

It is an arithmetic number, because the mean of its divisors is an integer number (1459728).

Almost surely, 2^11661054 is an apocalyptic number.

11661054 is an abundant number, since it is smaller than the sum of its proper divisors (11694594).

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

11661054 is a wasteful number, since it uses less digits than its factorization.

11661054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 11661054 is about 3414.8285462084. The cubic root of 11661054 is about 226.7666941254.

Adding to 11661054 its reverse (45016611), we get a palindrome (56677665).

The spelling of 11661054 in words is "eleven million, six hundred sixty-one thousand, fifty-four".