1611676369 has 2 divisors, whose sum is σ = 1611676370. Its totient is φ = 1611676368.

The previous prime is 1611676237. The next prime is 1611676373. The reversal of 1611676369 is 9636761161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 919302400 + 692373969 = 30320^2 + 26313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611676369 - 2¹⁵ = 1611643601 is a prime.

It is a super-2 number, since 2×1611676369² = 5195001436786048322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1611670369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805838184 + 805838185.

It is an arithmetic number, because the mean of its divisors is an integer number (805838185).

Almost surely, 2^1611676369 is an apocalyptic number.

It is an amenable number.

1611676369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611676369 is an equidigital number, since it uses as much as digits as its factorization.

1611676369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 1611676369 is about 40145.6892953652. The cubic root of 1611676369 is about 1172.4453613138.

The spelling of 1611676369 in words is "one billion, six hundred eleven million, six hundred seventy-six thousand, three hundred sixty-nine".