164665846 has 4 divisors (see below), whose sum is σ = 246998772. Its totient is φ = 82332922.

The previous prime is 164665829. The next prime is 164665847. The reversal of 164665846 is 648566461.

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

It is a super-2 number, since 2×164665846² = 54229681677791432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164665796 and 164665805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164665847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41166460 + ... + 41166463.

It is an arithmetic number, because the mean of its divisors is an integer number (61749693).

Almost surely, 2^164665846 is an apocalyptic number.

164665846 is a deficient number, since it is larger than the sum of its proper divisors (82332926).

164665846 is an equidigital number, since it uses as much as digits as its factorization.

164665846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82332925.

The product of its digits is 829440, while the sum is 46.

The square root of 164665846 is about 12832.2190598509. The cubic root of 164665846 is about 548.1101484413.

The spelling of 164665846 in words is "one hundred sixty-four million, six hundred sixty-five thousand, eight hundred forty-six".