166304902427 has 2 divisors, whose sum is σ = 166304902428. Its totient is φ = 166304902426.

The previous prime is 166304902411. The next prime is 166304902447. The reversal of 166304902427 is 724209403661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166304902427 - 2⁴ = 166304902411 is a prime.

It is not a weakly prime, because it can be changed into another prime (166304902447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83152451213 + 83152451214.

It is an arithmetic number, because the mean of its divisors is an integer number (83152451214).

Almost surely, 2^166304902427 is an apocalyptic number.

166304902427 is a deficient number, since it is larger than the sum of its proper divisors (1).

166304902427 is an equidigital number, since it uses as much as digits as its factorization.

166304902427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 166304902427 in words is "one hundred sixty-six billion, three hundred four million, nine hundred two thousand, four hundred twenty-seven".