164685910 has 8 divisors (see below), whose sum is σ = 296434656. Its totient is φ = 65874360.

The previous prime is 164685839. The next prime is 164685923. The reversal of 164685910 is 19586461.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8234286 + ... + 8234305.

It is an arithmetic number, because the mean of its divisors is an integer number (37054332).

Almost surely, 2^164685910 is an apocalyptic number.

164685910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164685910 is a deficient number, since it is larger than the sum of its proper divisors (131748746).

164685910 is a wasteful number, since it uses less digits than its factorization.

164685910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16468598.

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

The square root of 164685910 is about 12833.0008182030. Note that the first 3 decimals coincide. The cubic root of 164685910 is about 548.1324093526.

The spelling of 164685910 in words is "one hundred sixty-four million, six hundred eighty-five thousand, nine hundred ten".