11551715066 has 8 divisors (see below), whose sum is σ = 17330852340. Its totient is φ = 5774764288.

The previous prime is 11551715053. The next prime is 11551715069. The reversal of 11551715066 is 66051715511.

11551715066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11464199041 + 87516025 = 107071^2 + 9355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11551715069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 533351 + ... + 554586.

Almost surely, 2^11551715066 is an apocalyptic number.

11551715066 is a deficient number, since it is larger than the sum of its proper divisors (5779137274).

11551715066 is a wasteful number, since it uses less digits than its factorization.

11551715066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093248.

The product of its (nonzero) digits is 31500, while the sum is 38.

The spelling of 11551715066 in words is "eleven billion, five hundred fifty-one million, seven hundred fifteen thousand, sixty-six".