164194078 has 8 divisors (see below), whose sum is σ = 247922640. Its totient is φ = 81553200.

The previous prime is 164194021. The next prime is 164194087. The reversal of 164194078 is 870491461.

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

It is a self number, because there is not a number n which added to its sum of digits gives 164194078.

It is a congruent 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, 271543 + ... + 272146.

It is an arithmetic number, because the mean of its divisors is an integer number (30990330).

Almost surely, 2^164194078 is an apocalyptic number.

164194078 is a deficient number, since it is larger than the sum of its proper divisors (83728562).

164194078 is a wasteful number, since it uses less digits than its factorization.

164194078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543842.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 164194078 is about 12813.8237072312. The cubic root of 164194078 is about 547.5862021718.

The spelling of 164194078 in words is "one hundred sixty-four million, one hundred ninety-four thousand, seventy-eight".