11135354661 has 8 divisors (see below), whose sum is σ = 16496821760. Its totient is φ = 7423569756.

The previous prime is 11135354623. The next prime is 11135354677. The reversal of 11135354661 is 16645353111.

11135354661 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 53 + 546 + 61 = 666.

It is not a de Polignac number, because 11135354661 - 2²² = 11131160357 is a prime.

It is a super-2 number, since 2×11135354661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11135354611) 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, 206210245 + ... + 206210298.

It is an arithmetic number, because the mean of its divisors is an integer number (2062102720).

Almost surely, 2^11135354661 is an apocalyptic number.

It is an amenable number.

11135354661 is a deficient number, since it is larger than the sum of its proper divisors (5361467099).

11135354661 is an equidigital number, since it uses as much as digits as its factorization.

11135354661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412420552 (or 412420546 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 11135354661 in words is "eleven billion, one hundred thirty-five million, three hundred fifty-four thousand, six hundred sixty-one".