166030061 has 4 divisors (see below), whose sum is σ = 166095072. Its totient is φ = 165965052.

The previous prime is 166030057. The next prime is 166030091. The reversal of 166030061 is 160030661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166030061 - 2² = 166030057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166030001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28511 + ... + 33836.

It is an arithmetic number, because the mean of its divisors is an integer number (41523768).

Almost surely, 2^166030061 is an apocalyptic number.

It is an amenable number.

166030061 is a deficient number, since it is larger than the sum of its proper divisors (65011).

166030061 is an equidigital number, since it uses as much as digits as its factorization.

166030061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65010.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 166030061 is about 12885.2652669629. The cubic root of 166030061 is about 549.6196389444.

The spelling of 166030061 in words is "one hundred sixty-six million, thirty thousand, sixty-one".