166077047 has 2 divisors, whose sum is σ = 166077048. Its totient is φ = 166077046.

The previous prime is 166077031. The next prime is 166077049. The reversal of 166077047 is 740770661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166077047 - 2⁴ = 166077031 is a prime.

Together with 166077049, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166077047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166077049) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83038523 + 83038524.

It is an arithmetic number, because the mean of its divisors is an integer number (83038524).

Almost surely, 2^166077047 is an apocalyptic number.

166077047 is a deficient number, since it is larger than the sum of its proper divisors (1).

166077047 is an equidigital number, since it uses as much as digits as its factorization.

166077047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 166077047 is about 12887.0883833393. The cubic root of 166077047 is about 549.6714809472.

The spelling of 166077047 in words is "one hundred sixty-six million, seventy-seven thousand, forty-seven".