164004994 has 8 divisors (see below), whose sum is σ = 246105468. Its totient is φ = 81969840.

The previous prime is 164004989. The next prime is 164005007. The reversal of 164004994 is 499400461.

164004994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 160959969 + 3045025 = 12687^2 + 1745^2 .

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

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, 9477 + ... + 20440.

Almost surely, 2^164004994 is an apocalyptic number.

164004994 is a deficient number, since it is larger than the sum of its proper divisors (82100474).

164004994 is a wasteful number, since it uses less digits than its factorization.

164004994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32660.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 164004994 is about 12806.4434563231. The cubic root of 164004994 is about 547.3759234552.

The spelling of 164004994 in words is "one hundred sixty-four million, four thousand, nine hundred ninety-four".