166366057413203 has 2 divisors, whose sum is σ = 166366057413204. Its totient is φ = 166366057413202.

The previous prime is 166366057413197. The next prime is 166366057413209. The reversal of 166366057413203 is 302314750663661.

It is a balanced prime because it is at equal distance from previous prime (166366057413197) and next prime (166366057413209).

It is a cyclic number.

It is not a de Polignac number, because 166366057413203 - 2³⁴ = 166348877544019 is a prime.

It is not a weakly prime, because it can be changed into another prime (166366057413209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83183028706601 + 83183028706602.

It is an arithmetic number, because the mean of its divisors is an integer number (83183028706602).

Almost surely, 2^{166366057413203} is an apocalyptic number.

166366057413203 is a deficient number, since it is larger than the sum of its proper divisors (1).

166366057413203 is an equidigital number, since it uses as much as digits as its factorization.

166366057413203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 53.

The spelling of 166366057413203 in words is "one hundred sixty-six trillion, three hundred sixty-six billion, fifty-seven million, four hundred thirteen thousand, two hundred three".