11552150655421 has 2 divisors, whose sum is σ = 11552150655422. Its totient is φ = 11552150655420.

The previous prime is 11552150655359. The next prime is 11552150655443. The reversal of 11552150655421 is 12455605125511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6147850824196 + 5404299831225 = 2479486^2 + 2324715^2 .

It is a cyclic number.

It is not a de Polignac number, because 11552150655421 - 2¹⁹ = 11552150131133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11552150655491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776075327710 + 5776075327711.

It is an arithmetic number, because the mean of its divisors is an integer number (5776075327711).

Almost surely, 2^{11552150655421} is an apocalyptic number.

It is an amenable number.

11552150655421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11552150655421 is an equidigital number, since it uses as much as digits as its factorization.

11552150655421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300000, while the sum is 43.

The spelling of 11552150655421 in words is "eleven trillion, five hundred fifty-two billion, one hundred fifty million, six hundred fifty-five thousand, four hundred twenty-one".