11655012630321 has 12 divisors (see below), whose sum is σ = 16839356098500. Its totient is φ = 7768006333440.

The previous prime is 11655012630263. The next prime is 11655012630361. The reversal of 11655012630321 is 12303621055611.

11655012630321 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 5 + 0 + 12 + 630 + 3 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2320857246096 + 9334155384225 = 1523436^2 + 3055185^2 .

It is not a de Polignac number, because 11655012630321 - 2⁶ = 11655012630257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11655012630361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166803696 + ... + 166873553.

It is an arithmetic number, because the mean of its divisors is an integer number (1403279674875).

Almost surely, 2^{11655012630321} is an apocalyptic number.

It is an amenable number.

11655012630321 is a deficient number, since it is larger than the sum of its proper divisors (5184343468179).

11655012630321 is a wasteful number, since it uses less digits than its factorization.

11655012630321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333681136 (or 333681133 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 11655012630321 its reverse (12303621055611), we get a palindrome (23958633685932).

The spelling of 11655012630321 in words is "eleven trillion, six hundred fifty-five billion, twelve million, six hundred thirty thousand, three hundred twenty-one".