166132530605 has 8 divisors (see below), whose sum is σ = 199554301464. Its totient is φ = 132775848000.

The previous prime is 166132530593. The next prime is 166132530631. The reversal of 166132530605 is 506035231661.

It can be written as a sum of positive squares in 4 ways, for example, as 4281608356 + 161850922249 = 65434^2 + 402307^2 .

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

It is not a de Polignac number, because 166132530605 - 2¹² = 166132526509 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, 16266446 + ... + 16276655.

It is an arithmetic number, because the mean of its divisors is an integer number (24944287683).

Almost surely, 2^166132530605 is an apocalyptic number.

It is an amenable number.

166132530605 is a deficient number, since it is larger than the sum of its proper divisors (33421770859).

166132530605 is a wasteful number, since it uses less digits than its factorization.

166132530605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32544127.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 166132530605 in words is "one hundred sixty-six billion, one hundred thirty-two million, five hundred thirty thousand, six hundred five".