232640166 has 32 divisors (see below), whose sum is σ = 511790976. Its totient is φ = 70494600.

The previous prime is 232640143. The next prime is 232640167. The reversal of 232640166 is 661046232.

232640166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232640167) 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, 6580 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (15993468).

Almost surely, 2^232640166 is an apocalyptic number.

232640166 is an abundant number, since it is smaller than the sum of its proper divisors (279150810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232640166 is a wasteful number, since it uses less digits than its factorization.

232640166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29169 (or 29147 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 232640166 is about 15252.5462136654. The cubic root of 232640166 is about 615.0280164380.

Adding to 232640166 its reverse (661046232), we get a palindrome (893686398).

The spelling of 232640166 in words is "two hundred thirty-two million, six hundred forty thousand, one hundred sixty-six".