167991255 has 48 divisors (see below), whose sum is σ = 311631840. Its totient is φ = 83462400.

The previous prime is 167991221. The next prime is 167991259. The reversal of 167991255 is 552199761.

It is not a de Polignac number, because 167991255 - 2¹¹ = 167989207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 167991255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167991259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50545 + ... + 53765.

It is an arithmetic number, because the mean of its divisors is an integer number (6492330).

Almost surely, 2^167991255 is an apocalyptic number.

167991255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

167991255 is a deficient number, since it is larger than the sum of its proper divisors (143640585).

167991255 is a wasteful number, since it uses less digits than its factorization.

167991255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3309 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 167991255 is about 12961.1440467267. The cubic root of 167991255 is about 551.7752609863.

The spelling of 167991255 in words is "one hundred sixty-seven million, nine hundred ninety-one thousand, two hundred fifty-five".