164178391255 has 8 divisors (see below), whose sum is σ = 197063187552. Its totient is φ = 131309967648.

The previous prime is 164178391249. The next prime is 164178391283. The reversal of 164178391255 is 552193871461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164178391255 - 2⁹ = 164178390743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4071099 + ... + 4111228.

It is an arithmetic number, because the mean of its divisors is an integer number (24632898444).

Almost surely, 2^164178391255 is an apocalyptic number.

164178391255 is a deficient number, since it is larger than the sum of its proper divisors (32884796297).

164178391255 is an equidigital number, since it uses as much as digits as its factorization.

164178391255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186345.

The product of its digits is 1814400, while the sum is 52.

The spelling of 164178391255 in words is "one hundred sixty-four billion, one hundred seventy-eight million, three hundred ninety-one thousand, two hundred fifty-five".