1166828871371 has 2 divisors, whose sum is σ = 1166828871372. Its totient is φ = 1166828871370.

The previous prime is 1166828871347. The next prime is 1166828871433. The reversal of 1166828871371 is 1731788286611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166828871371 - 2¹⁴ = 1166828854987 is a prime.

It is a super-2 number, since 2×1166828871371² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166828871371.

It is not a weakly prime, because it can be changed into another prime (1166828871331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583414435685 + 583414435686.

It is an arithmetic number, because the mean of its divisors is an integer number (583414435686).

Almost surely, 2^{1166828871371} is an apocalyptic number.

1166828871371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166828871371 is an equidigital number, since it uses as much as digits as its factorization.

1166828871371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 59.

The spelling of 1166828871371 in words is "one trillion, one hundred sixty-six billion, eight hundred twenty-eight million, eight hundred seventy-one thousand, three hundred seventy-one".