164860870 has 32 divisors (see below), whose sum is σ = 302724576. Its totient is φ = 64627200.

The previous prime is 164860867. The next prime is 164860879. The reversal of 164860870 is 78068461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164860879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160960 + ... + 161980.

It is an arithmetic number, because the mean of its divisors is an integer number (9460143).

Almost surely, 2^164860870 is an apocalyptic number.

164860870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164860870 is a deficient number, since it is larger than the sum of its proper divisors (137863706).

164860870 is a wasteful number, since it uses less digits than its factorization.

164860870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 164860870 is about 12839.8158086477. The cubic root of 164860870 is about 548.3264500470.

The spelling of 164860870 in words is "one hundred sixty-four million, eight hundred sixty thousand, eight hundred seventy".