11561666224351 has 32 divisors (see below), whose sum is σ = 12099988892160. Its totient is φ = 11036644502400.

The previous prime is 11561666224321. The next prime is 11561666224387. The reversal of 11561666224351 is 15342266616511.

It is a cyclic number.

It is not a de Polignac number, because 11561666224351 - 2⁴³ = 2765573202143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11561666224295 and 11561666224304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11561666224321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1064702760 + ... + 1064713618.

It is an arithmetic number, because the mean of its divisors is an integer number (378124652880).

Almost surely, 2^{11561666224351} is an apocalyptic number.

11561666224351 is a deficient number, since it is larger than the sum of its proper divisors (538322667809).

11561666224351 is a wasteful number, since it uses less digits than its factorization.

11561666224351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12655.

The product of its digits is 1555200, while the sum is 49.

The spelling of 11561666224351 in words is "eleven trillion, five hundred sixty-one billion, six hundred sixty-six million, two hundred twenty-four thousand, three hundred fifty-one".