166233740611 has 2 divisors, whose sum is σ = 166233740612. Its totient is φ = 166233740610.

The previous prime is 166233740567. The next prime is 166233740741. The reversal of 166233740611 is 116047332661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166233740611 - 2⁷ = 166233740483 is a prime.

It is not a weakly prime, because it can be changed into another prime (166233740011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83116870305 + 83116870306.

It is an arithmetic number, because the mean of its divisors is an integer number (83116870306).

Almost surely, 2^166233740611 is an apocalyptic number.

166233740611 is a deficient number, since it is larger than the sum of its proper divisors (1).

166233740611 is an equidigital number, since it uses as much as digits as its factorization.

166233740611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 166233740611 in words is "one hundred sixty-six billion, two hundred thirty-three million, seven hundred forty thousand, six hundred eleven".