1166789012203 has 2 divisors, whose sum is σ = 1166789012204. Its totient is φ = 1166789012202.

The previous prime is 1166789012153. The next prime is 1166789012261. The reversal of 1166789012203 is 3022109876611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166789012203 - 2⁹ = 1166789011691 is a prime.

It is a super-2 number, since 2×1166789012203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1166789012273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583394506101 + 583394506102.

It is an arithmetic number, because the mean of its divisors is an integer number (583394506102).

Almost surely, 2^{1166789012203} is an apocalyptic number.

1166789012203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166789012203 is an equidigital number, since it uses as much as digits as its factorization.

1166789012203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 1166789012203 in words is "one trillion, one hundred sixty-six billion, seven hundred eighty-nine million, twelve thousand, two hundred three".