1553441143169 has 2 divisors, whose sum is σ = 1553441143170. Its totient is φ = 1553441143168.

The previous prime is 1553441143139. The next prime is 1553441143183. The reversal of 1553441143169 is 9613411443551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913913056144 + 639528087025 = 955988^2 + 799705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553441143169 is a prime.

It is a super-2 number, since 2×1553441143169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1553441143109) 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 as a sum of consecutive naturals, namely, 776720571584 + 776720571585.

It is an arithmetic number, because the mean of its divisors is an integer number (776720571585).

Almost surely, 2^{1553441143169} is an apocalyptic number.

It is an amenable number.

1553441143169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553441143169 is an equidigital number, since it uses as much as digits as its factorization.

1553441143169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The spelling of 1553441143169 in words is "one trillion, five hundred fifty-three billion, four hundred forty-one million, one hundred forty-three thousand, one hundred sixty-nine".