11155206646 has 16 divisors (see below), whose sum is σ = 16796800944. Its totient is φ = 5556294144.

The previous prime is 11155206637. The next prime is 11155206649. The reversal of 11155206646 is 64660255111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155206649) 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, 1391626 + ... + 1399618.

It is an arithmetic number, because the mean of its divisors is an integer number (1049800059).

Almost surely, 2^11155206646 is an apocalyptic number.

11155206646 is a deficient number, since it is larger than the sum of its proper divisors (5641594298).

11155206646 is a wasteful number, since it uses less digits than its factorization.

11155206646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10575.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 11155206646 in words is "eleven billion, one hundred fifty-five million, two hundred six thousand, six hundred forty-six".