164278014155 has 4 divisors (see below), whose sum is σ = 197133616992. Its totient is φ = 131422411320.

The previous prime is 164278014133. The next prime is 164278014167. The reversal of 164278014155 is 551410872461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 164278014155 - 2⁸ = 164278013899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16427801411 + ... + 16427801420.

It is an arithmetic number, because the mean of its divisors is an integer number (49283404248).

Almost surely, 2^164278014155 is an apocalyptic number.

164278014155 is a deficient number, since it is larger than the sum of its proper divisors (32855602837).

164278014155 is an equidigital number, since it uses as much as digits as its factorization.

164278014155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32855602836.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 164278014155 in words is "one hundred sixty-four billion, two hundred seventy-eight million, fourteen thousand, one hundred fifty-five".