100550161489 has 2 divisors, whose sum is σ = 100550161490. Its totient is φ = 100550161488.

The previous prime is 100550161487. The next prime is 100550161501. The reversal of 100550161489 is 984161055001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84820737600 + 15729423889 = 291240^2 + 125417^2 .

It is a cyclic number.

It is not a de Polignac number, because 100550161489 - 2¹ = 100550161487 is a prime.

It is a super-2 number, since 2×100550161489² (a number of 23 digits) contains 22 as substring.

Together with 100550161487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100550161487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275080744 + 50275080745.

It is an arithmetic number, because the mean of its divisors is an integer number (50275080745).

Almost surely, 2^100550161489 is an apocalyptic number.

It is an amenable number.

100550161489 is a deficient number, since it is larger than the sum of its proper divisors (1).

100550161489 is an equidigital number, since it uses as much as digits as its factorization.

100550161489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 40.

The spelling of 100550161489 in words is "one hundred billion, five hundred fifty million, one hundred sixty-one thousand, four hundred eighty-nine".