166890024211 has 2 divisors, whose sum is σ = 166890024212. Its totient is φ = 166890024210.

The previous prime is 166890024167. The next prime is 166890024251. The reversal of 166890024211 is 112420098661.

It is an a-pointer prime, because the next prime (166890024251) can be obtained adding 166890024211 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166890024211 - 2⁷ = 166890024083 is a prime.

It is a super-2 number, since 2×166890024211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166890024251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83445012105 + 83445012106.

It is an arithmetic number, because the mean of its divisors is an integer number (83445012106).

Almost surely, 2^166890024211 is an apocalyptic number.

166890024211 is a deficient number, since it is larger than the sum of its proper divisors (1).

166890024211 is an equidigital number, since it uses as much as digits as its factorization.

166890024211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 166890024211 in words is "one hundred sixty-six billion, eight hundred ninety million, twenty-four thousand, two hundred eleven".