10550562161021 has 2 divisors, whose sum is σ = 10550562161022. Its totient is φ = 10550562161020.

The previous prime is 10550562160987. The next prime is 10550562161033. The reversal of 10550562161021 is 12016126505501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9043769085796 + 1506793075225 = 3007286^2 + 1227515^2 .

It is an emirp because it is prime and its reverse (12016126505501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10550562161021 - 2¹⁴ = 10550562144637 is a prime.

It is a super-2 number, since 2×10550562161021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10550562161071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275281080510 + 5275281080511.

It is an arithmetic number, because the mean of its divisors is an integer number (5275281080511).

Almost surely, 2^{10550562161021} is an apocalyptic number.

It is an amenable number.

10550562161021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10550562161021 is an equidigital number, since it uses as much as digits as its factorization.

10550562161021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 35.

Adding to 10550562161021 its reverse (12016126505501), we get a palindrome (22566688666522).

The spelling of 10550562161021 in words is "ten trillion, five hundred fifty billion, five hundred sixty-two million, one hundred sixty-one thousand, twenty-one".