166314438 has 32 divisors (see below), whose sum is σ = 372301920. Its totient is φ = 55031040.

The previous prime is 166314427. The next prime is 166314439. The reversal of 166314438 is 834413661.

It is a happy number.

166314438 is a `hidden beast` number, since 16 + 631 + 4 + 4 + 3 + 8 = 666.

166314438 is digitally balanced in base 2, 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 (166314439) 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, 3843 + ... + 18638.

It is an arithmetic number, because the mean of its divisors is an integer number (11634435).

Almost surely, 2^166314438 is an apocalyptic number.

166314438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

166314438 is an abundant number, since it is smaller than the sum of its proper divisors (205987482).

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

166314438 is a wasteful number, since it uses less digits than its factorization.

166314438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629 (or 22623 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 166314438 is about 12896.2955146042. The cubic root of 166314438 is about 549.9332569148.

The spelling of 166314438 in words is "one hundred sixty-six million, three hundred fourteen thousand, four hundred thirty-eight".