1606224011531 has 2 divisors, whose sum is σ = 1606224011532. Its totient is φ = 1606224011530.

The previous prime is 1606224011383. The next prime is 1606224011533. The reversal of 1606224011531 is 1351104226061.

It is a strong prime.

It is an emirp because it is prime and its reverse (1351104226061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606224011531 - 2¹⁴ = 1606223995147 is a prime.

It is a super-2 number, since 2×1606224011531² (a number of 25 digits) contains 22 as substring.

Together with 1606224011533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1606224011533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803112005765 + 803112005766.

It is an arithmetic number, because the mean of its divisors is an integer number (803112005766).

Almost surely, 2^{1606224011531} is an apocalyptic number.

1606224011531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606224011531 is an equidigital number, since it uses as much as digits as its factorization.

1606224011531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 1606224011531 its reverse (1351104226061), we get a palindrome (2957328237592).

The spelling of 1606224011531 in words is "one trillion, six hundred six billion, two hundred twenty-four million, eleven thousand, five hundred thirty-one".