164162890 has 8 divisors (see below), whose sum is σ = 295493220. Its totient is φ = 65665152.

The previous prime is 164162851. The next prime is 164162909. The reversal of 164162890 is 98261461.

It is a happy number.

164162890 is digitally balanced in base 2, 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 164019249 + 143641 = 12807^2 + 379^2 .

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, 8208135 + ... + 8208154.

Almost surely, 2^164162890 is an apocalyptic number.

164162890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164162890 is a deficient number, since it is larger than the sum of its proper divisors (131330330).

164162890 is a wasteful number, since it uses less digits than its factorization.

164162890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416296.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 164162890 is about 12812.6066824827. The cubic root of 164162890 is about 547.5515293827.

It can be divided in two parts, 16416 and 2890, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 164162890 in words is "one hundred sixty-four million, one hundred sixty-two thousand, eight hundred ninety".