11062661661 has 24 divisors (see below), whose sum is σ = 16110529344. Its totient is φ = 7314783360.

The previous prime is 11062661653. The next prime is 11062661677. The reversal of 11062661661 is 16616626011.

It is a happy number.

11062661661 is a `hidden beast` number, since 1 + 10 + 6 + 26 + 616 + 6 + 1 = 666.

It is not a de Polignac number, because 11062661661 - 2³ = 11062661653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11062661261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 694021 + ... + 709781.

It is an arithmetic number, because the mean of its divisors is an integer number (671272056).

Almost surely, 2^11062661661 is an apocalyptic number.

It is an amenable number.

11062661661 is a deficient number, since it is larger than the sum of its proper divisors (5047867683).

11062661661 is a wasteful number, since it uses less digits than its factorization.

11062661661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401 (or 16398 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 11062661661 in words is "eleven billion, sixty-two million, six hundred sixty-one thousand, six hundred sixty-one".