167665338 has 12 divisors (see below), whose sum is σ = 363274938. Its totient is φ = 55888440.

The previous prime is 167665307. The next prime is 167665343. The reversal of 167665338 is 833566761.

It can be written as a sum of positive squares in only one way, i.e., 167107329 + 558009 = 12927^2 + 747^2 .

It is a super-2 number, since 2×167665338² = 56223331133308488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 167665293 and 167665302.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4657353 + ... + 4657388.

Almost surely, 2^167665338 is an apocalyptic number.

167665338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

167665338 is an abundant number, since it is smaller than the sum of its proper divisors (195609600).

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

167665338 is a wasteful number, since it uses less digits than its factorization.

167665338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9314749 (or 9314746 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 167665338 is about 12948.5650942489. The cubic root of 167665338 is about 551.4182000187.

The spelling of 167665338 in words is "one hundred sixty-seven million, six hundred sixty-five thousand, three hundred thirty-eight".