164686424 has 32 divisors (see below), whose sum is σ = 353637120. Its totient is φ = 70432416.

The previous prime is 164686409. The next prime is 164686439. The reversal of 164686424 is 424686461.

It is an interprime number because it is at equal distance from previous prime (164686409) and next prime (164686439).

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 7 ways as a sum of consecutive naturals, for example, 26477 + ... + 32099.

It is an arithmetic number, because the mean of its divisors is an integer number (11051160).

Almost surely, 2^164686424 is an apocalyptic number.

164686424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164686424 is an abundant number, since it is smaller than the sum of its proper divisors (188950696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164686424 is a wasteful number, since it uses less digits than its factorization.

164686424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6159 (or 6155 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 164686424 is about 12833.0208446803. The cubic root of 164686424 is about 548.1329796094.

The spelling of 164686424 in words is "one hundred sixty-four million, six hundred eighty-six thousand, four hundred twenty-four".