166710541 has 4 divisors (see below), whose sum is σ = 175484800. Its totient is φ = 157936284.

The previous prime is 166710521. The next prime is 166710559. The reversal of 166710541 is 145017661.

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 not a de Polignac number, because 166710541 - 2⁷ = 166710413 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 (166710521) 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, 4387101 + ... + 4387138.

It is an arithmetic number, because the mean of its divisors is an integer number (43871200).

Almost surely, 2^166710541 is an apocalyptic number.

It is an amenable number.

166710541 is a deficient number, since it is larger than the sum of its proper divisors (8774259).

166710541 is an equidigital number, since it uses as much as digits as its factorization.

166710541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774258.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 166710541 is about 12911.6436211661. The cubic root of 166710541 is about 550.3694938646.

The spelling of 166710541 in words is "one hundred sixty-six million, seven hundred ten thousand, five hundred forty-one".