166346741 has 8 divisors (see below), whose sum is σ = 189359424. Its totient is φ = 144649120.

The previous prime is 166346737. The next prime is 166346743. The reversal of 166346741 is 147643661.

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

It is not a de Polignac number, because 166346741 - 2² = 166346737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166346695 and 166346704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166346743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328496 + ... + 329001.

It is an arithmetic number, because the mean of its divisors is an integer number (23669928).

Almost surely, 2^166346741 is an apocalyptic number.

166346741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

166346741 is a deficient number, since it is larger than the sum of its proper divisors (23012683).

166346741 is a wasteful number, since it uses less digits than its factorization.

166346741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657531.

The product of its digits is 72576, while the sum is 38.

The square root of 166346741 is about 12897.5478677150. The cubic root of 166346741 is about 549.9688588429.

The spelling of 166346741 in words is "one hundred sixty-six million, three hundred forty-six thousand, seven hundred forty-one".