166010555 has 8 divisors (see below), whose sum is σ = 199510992. Its totient is φ = 132609568.

The previous prime is 166010531. The next prime is 166010563. The reversal of 166010555 is 555010661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166010555 - 2¹⁰ = 166009531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21137 + ... + 27906.

It is an arithmetic number, because the mean of its divisors is an integer number (24938874).

Almost surely, 2^166010555 is an apocalyptic number.

166010555 is a deficient number, since it is larger than the sum of its proper divisors (33500437).

166010555 is an equidigital number, since it uses as much as digits as its factorization.

166010555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49725.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 166010555 is about 12884.5083336540. The cubic root of 166010555 is about 549.5981141264.

The spelling of 166010555 in words is "one hundred sixty-six million, ten thousand, five hundred fifty-five".