164630871 has 12 divisors (see below), whose sum is σ = 244227672. Its totient is φ = 106787376.

The previous prime is 164630857. The next prime is 164630881. The reversal of 164630871 is 178036461.

164630871 is a `hidden beast` number, since 1 + 646 + 3 + 0 + 8 + 7 + 1 = 666.

It is not a de Polignac number, because 164630871 - 2⁷ = 164630743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164630821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246861 + ... + 247526.

It is an arithmetic number, because the mean of its divisors is an integer number (20352306).

Almost surely, 2^164630871 is an apocalyptic number.

164630871 is a deficient number, since it is larger than the sum of its proper divisors (79596801).

164630871 is a wasteful number, since it uses less digits than its factorization.

164630871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494430 (or 494427 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 164630871 is about 12830.8562068164. The cubic root of 164630871 is about 548.0713395235.

The spelling of 164630871 in words is "one hundred sixty-four million, six hundred thirty thousand, eight hundred seventy-one".