11156654660 has 24 divisors (see below), whose sum is σ = 23433071256. Its totient is φ = 4461881600.

The previous prime is 11156654653. The next prime is 11156654681. The reversal of 11156654660 is 6645665111.

It can be written as a sum of positive squares in 4 ways, for example, as 327754816 + 10828899844 = 18104^2 + 104062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76304 + ... + 167736.

It is an arithmetic number, because the mean of its divisors is an integer number (976377969).

Almost surely, 2^11156654660 is an apocalyptic number.

11156654660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11156654660 is an abundant number, since it is smaller than the sum of its proper divisors (12276416596).

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

11156654660 is a wasteful number, since it uses less digits than its factorization.

11156654660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97543 (or 97541 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 11156654660 in words is "eleven billion, one hundred fifty-six million, six hundred fifty-four thousand, six hundred sixty".