166376505 has 16 divisors (see below), whose sum is σ = 266471424. Its totient is φ = 88644480.

The previous prime is 166376489. The next prime is 166376533. The reversal of 166376505 is 505673661.

It is not a de Polignac number, because 166376505 - 2⁴ = 166376489 is a prime.

It is a super-2 number, since 2×166376505² = 55362282832030050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11400 + ... + 21510.

It is an arithmetic number, because the mean of its divisors is an integer number (16654464).

Almost surely, 2^166376505 is an apocalyptic number.

166376505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166376505 is a deficient number, since it is larger than the sum of its proper divisors (100094919).

166376505 is a wasteful number, since it uses less digits than its factorization.

166376505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11216.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 166376505 is about 12898.7016788512. The cubic root of 166376505 is about 550.0016583972.

The spelling of 166376505 in words is "one hundred sixty-six million, three hundred seventy-six thousand, five hundred five".