166051073 has 2 divisors, whose sum is σ = 166051074. Its totient is φ = 166051072.

The previous prime is 166051069. The next prime is 166051091. The reversal of 166051073 is 370150661.

166051073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150503824 + 15547249 = 12268^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 166051073 - 2² = 166051069 is a prime.

It is not a weakly prime, because it can be changed into another prime (166051003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83025536 + 83025537.

It is an arithmetic number, because the mean of its divisors is an integer number (83025537).

Almost surely, 2^166051073 is an apocalyptic number.

It is an amenable number.

166051073 is a deficient number, since it is larger than the sum of its proper divisors (1).

166051073 is an equidigital number, since it uses as much as digits as its factorization.

166051073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 166051073 is about 12886.0805910874. The cubic root of 166051073 is about 549.6428237433.

The spelling of 166051073 in words is "one hundred sixty-six million, fifty-one thousand, seventy-three".