166375869 has 8 divisors (see below), whose sum is σ = 242001312. Its totient is φ = 100833840.

The previous prime is 166375849. The next prime is 166375873. The reversal of 166375869 is 968573661.

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

It is not a de Polignac number, because 166375869 - 2¹¹ = 166373821 is a prime.

It is a super-2 number, since 2×166375869² = 55361859571010322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166375829) 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 7 ways as a sum of consecutive naturals, for example, 2520814 + ... + 2520879.

It is an arithmetic number, because the mean of its divisors is an integer number (30250164).

Almost surely, 2^166375869 is an apocalyptic number.

It is an amenable number.

166375869 is a deficient number, since it is larger than the sum of its proper divisors (75625443).

166375869 is a wasteful number, since it uses less digits than its factorization.

166375869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041707.

The product of its digits is 1632960, while the sum is 51.

The square root of 166375869 is about 12898.6770251836. The cubic root of 166375869 is about 550.0009575741. Note that the first 3 decimals are identical.

The spelling of 166375869 in words is "one hundred sixty-six million, three hundred seventy-five thousand, eight hundred sixty-nine".