67223884561 has 2 divisors, whose sum is σ = 67223884562. Its totient is φ = 67223884560.

The previous prime is 67223884543. The next prime is 67223884573. The reversal of 67223884561 is 16548832276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62372065536 + 4851819025 = 249744^2 + 69655^2 .

It is a cyclic number.

It is not a de Polignac number, because 67223884561 - 2¹¹ = 67223882513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67223884499 and 67223884508.

It is not a weakly prime, because it can be changed into another prime (67223884061) 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, 33611942280 + 33611942281.

It is an arithmetic number, because the mean of its divisors is an integer number (33611942281).

Almost surely, 2^67223884561 is an apocalyptic number.

It is an amenable number.

67223884561 is a deficient number, since it is larger than the sum of its proper divisors (1).

67223884561 is an equidigital number, since it uses as much as digits as its factorization.

67223884561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 67223884561 in words is "sixty-seven billion, two hundred twenty-three million, eight hundred eighty-four thousand, five hundred sixty-one".