550665189511 has 2 divisors, whose sum is σ = 550665189512. Its totient is φ = 550665189510.

The previous prime is 550665189497. The next prime is 550665189533. The reversal of 550665189511 is 115981566055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550665189511 - 2¹⁹ = 550664665223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550665183511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275332594755 + 275332594756.

It is an arithmetic number, because the mean of its divisors is an integer number (275332594756).

Almost surely, 2^550665189511 is an apocalyptic number.

550665189511 is a deficient number, since it is larger than the sum of its proper divisors (1).

550665189511 is an equidigital number, since it uses as much as digits as its factorization.

550665189511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 52.

The spelling of 550665189511 in words is "five hundred fifty billion, six hundred sixty-five million, one hundred eighty-nine thousand, five hundred eleven".