1051079143661 has 2 divisors, whose sum is σ = 1051079143662. Its totient is φ = 1051079143660.

The previous prime is 1051079143627. The next prime is 1051079143693. The reversal of 1051079143661 is 1663419701501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883212762436 + 167866381225 = 939794^2 + 409715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051079143661 - 2¹⁴ = 1051079127277 is a prime.

It is a super-2 number, since 2×1051079143661² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051079145661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525539571830 + 525539571831.

It is an arithmetic number, because the mean of its divisors is an integer number (525539571831).

Almost surely, 2^{1051079143661} is an apocalyptic number.

It is an amenable number.

1051079143661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051079143661 is an equidigital number, since it uses as much as digits as its factorization.

1051079143661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 1051079143661 in words is "one trillion, fifty-one billion, seventy-nine million, one hundred forty-three thousand, six hundred sixty-one".