166634005 has 8 divisors (see below), whose sum is σ = 203239224. Its totient is φ = 131121600.

The previous prime is 166633993. The next prime is 166634023. The reversal of 166634005 is 500436661.

166634005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69169 + 166564836 = 263^2 + 12906^2 .

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

It is not a de Polignac number, because 166634005 - 2¹³ = 166625813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272866 + ... + 273475.

It is an arithmetic number, because the mean of its divisors is an integer number (25404903).

Almost surely, 2^166634005 is an apocalyptic number.

It is an amenable number.

166634005 is a deficient number, since it is larger than the sum of its proper divisors (36605219).

166634005 is an equidigital number, since it uses as much as digits as its factorization.

166634005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546407.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 166634005 is about 12908.6794444668. The cubic root of 166634005 is about 550.2852569848.

The spelling of 166634005 in words is "one hundred sixty-six million, six hundred thirty-four thousand, five".