164516890 has 16 divisors (see below), whose sum is σ = 296320032. Its totient is φ = 65764624.

The previous prime is 164516881. The next prime is 164516893. The reversal of 164516890 is 98615461.

164516890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164516893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14757 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (18520002).

Almost surely, 2^164516890 is an apocalyptic number.

164516890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164516890 is a deficient number, since it is larger than the sum of its proper divisors (131803142).

164516890 is a wasteful number, since it uses less digits than its factorization.

164516890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 164516890 is about 12826.4137622330. The cubic root of 164516890 is about 547.9448259048.

The spelling of 164516890 in words is "one hundred sixty-four million, five hundred sixteen thousand, eight hundred ninety".