1611061015129 has 2 divisors, whose sum is σ = 1611061015130. Its totient is φ = 1611061015128.

The previous prime is 1611061015121. The next prime is 1611061015169. The reversal of 1611061015129 is 9215101601161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044575982025 + 566485033104 = 1022045^2 + 752652^2 .

It is an emirp because it is prime and its reverse (9215101601161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1611061015129 - 2³ = 1611061015121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1611061015094 and 1611061015103.

It is not a weakly prime, because it can be changed into another prime (1611061015121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805530507564 + 805530507565.

It is an arithmetic number, because the mean of its divisors is an integer number (805530507565).

Almost surely, 2^{1611061015129} is an apocalyptic number.

It is an amenable number.

1611061015129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611061015129 is an equidigital number, since it uses as much as digits as its factorization.

1611061015129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 34.

The spelling of 1611061015129 in words is "one trillion, six hundred eleven billion, sixty-one million, fifteen thousand, one hundred twenty-nine".