166180153099 has 2 divisors, whose sum is σ = 166180153100. Its totient is φ = 166180153098.

The previous prime is 166180153049. The next prime is 166180153129. The reversal of 166180153099 is 990351081661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166180153099 - 2²¹ = 166178055947 is a prime.

It is not a weakly prime, because it can be changed into another prime (166180153049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83090076549 + 83090076550.

It is an arithmetic number, because the mean of its divisors is an integer number (83090076550).

Almost surely, 2^166180153099 is an apocalyptic number.

166180153099 is a deficient number, since it is larger than the sum of its proper divisors (1).

166180153099 is an equidigital number, since it uses as much as digits as its factorization.

166180153099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 166180153099 in words is "one hundred sixty-six billion, one hundred eighty million, one hundred fifty-three thousand, ninety-nine".