166241057 has 2 divisors, whose sum is σ = 166241058. Its totient is φ = 166241056.

The previous prime is 166240999. The next prime is 166241083. The reversal of 166241057 is 750142661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148254976 + 17986081 = 12176^2 + 4241^2 .

It is a cyclic number.

It is not a de Polignac number, because 166241057 - 2⁶ = 166240993 is a prime.

It is not a weakly prime, because it can be changed into another prime (166246057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83120528 + 83120529.

It is an arithmetic number, because the mean of its divisors is an integer number (83120529).

Almost surely, 2^166241057 is an apocalyptic number.

It is an amenable number.

166241057 is a deficient number, since it is larger than the sum of its proper divisors (1).

166241057 is an equidigital number, since it uses as much as digits as its factorization.

166241057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 166241057 is about 12893.4501588985. The cubic root of 166241057 is about 549.8523647819.

The spelling of 166241057 in words is "one hundred sixty-six million, two hundred forty-one thousand, fifty-seven".