11353261661 has 8 divisors (see below), whose sum is σ = 13291623744. Its totient is φ = 9494016480.

The previous prime is 11353261627. The next prime is 11353261681. The reversal of 11353261661 is 16616235311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11353261661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11353261681) 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, 19778915 + ... + 19779488.

It is an arithmetic number, because the mean of its divisors is an integer number (1661452968).

Almost surely, 2^11353261661 is an apocalyptic number.

It is an amenable number.

11353261661 is a deficient number, since it is larger than the sum of its proper divisors (1938362083).

11353261661 is an equidigital number, since it uses as much as digits as its factorization.

11353261661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39558451.

The product of its digits is 19440, while the sum is 35.

Adding to 11353261661 its reverse (16616235311), we get a palindrome (27969496972).

The spelling of 11353261661 in words is "eleven billion, three hundred fifty-three million, two hundred sixty-one thousand, six hundred sixty-one".