11261661 has 8 divisors (see below), whose sum is σ = 15805920. Its totient is φ = 7112592.

The previous prime is 11261659. The next prime is 11261669. The reversal of 11261661 is 16616211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11261661 - 2¹ = 11261659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11261669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98730 + ... + 98843.

It is an arithmetic number, because the mean of its divisors is an integer number (1975740).

Almost surely, 2^11261661 is an apocalyptic number.

It is an amenable number.

11261661 is a deficient number, since it is larger than the sum of its proper divisors (4544259).

11261661 is a wasteful number, since it uses less digits than its factorization.

11261661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197595.

The product of its digits is 432, while the sum is 24.

The square root of 11261661 is about 3355.8398352722. The cubic root of 11261661 is about 224.1476293509.

Adding to 11261661 its reverse (16616211), we get a palindrome (27877872).

The spelling of 11261661 in words is "eleven million, two hundred sixty-one thousand, six hundred sixty-one".