166433738 has 8 divisors (see below), whose sum is σ = 252455940. Its totient is φ = 82281760.

The previous prime is 166433717. The next prime is 166433753. The reversal of 166433738 is 837334661.

It can be written as a sum of positive squares in 2 ways, for example, as 154579489 + 11854249 = 12433^2 + 3443^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166433695 and 166433704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467333 + ... + 467688.

Almost surely, 2^166433738 is an apocalyptic number.

166433738 is a deficient number, since it is larger than the sum of its proper divisors (86022202).

166433738 is an equidigital number, since it uses as much as digits as its factorization.

166433738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935112.

The product of its digits is 217728, while the sum is 41.

The square root of 166433738 is about 12900.9200447100. The cubic root of 166433738 is about 550.0647174534.

The spelling of 166433738 in words is "one hundred sixty-six million, four hundred thirty-three thousand, seven hundred thirty-eight".