166631134 has 32 divisors (see below), whose sum is σ = 262342080. Its totient is φ = 79315200.

The previous prime is 166631123. The next prime is 166631137. The reversal of 166631134 is 431136661.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 166631096 and 166631105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166631137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920524 + ... + 920704.

It is an arithmetic number, because the mean of its divisors is an integer number (8198190).

Almost surely, 2^166631134 is an apocalyptic number.

166631134 is a deficient number, since it is larger than the sum of its proper divisors (95710946).

166631134 is a wasteful number, since it uses less digits than its factorization.

166631134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its digits is 7776, while the sum is 31.

The square root of 166631134 is about 12908.5682397391. The cubic root of 166631134 is about 550.2820966094.

Adding to 166631134 its reverse (431136661), we get a palindrome (597767795).

The spelling of 166631134 in words is "one hundred sixty-six million, six hundred thirty-one thousand, one hundred thirty-four".