11156661306 has 64 divisors (see below), whose sum is σ = 28350892800. Its totient is φ = 3185759808.

The previous prime is 11156661287. The next prime is 11156661317. The reversal of 11156661306 is 60316665111.

11156661306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723040 + ... + 738308.

It is an arithmetic number, because the mean of its divisors is an integer number (442982700).

Almost surely, 2^11156661306 is an apocalyptic number.

11156661306 is an abundant number, since it is smaller than the sum of its proper divisors (17194231494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11156661306 is a wasteful number, since it uses less digits than its factorization.

11156661306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220 (or 17214 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 11156661306 in words is "eleven billion, one hundred fifty-six million, six hundred sixty-one thousand, three hundred six".