164872670 has 32 divisors (see below), whose sum is σ = 301694976. Its totient is φ = 64864800.

The previous prime is 164872667. The next prime is 164872711. The reversal of 164872670 is 76278461.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165875 + ... + 166865.

It is an arithmetic number, because the mean of its divisors is an integer number (9427968).

Almost surely, 2^164872670 is an apocalyptic number.

164872670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164872670 is a deficient number, since it is larger than the sum of its proper divisors (136822306).

164872670 is a wasteful number, since it uses less digits than its factorization.

164872670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 164872670 is about 12840.2753085750. The cubic root of 164872670 is about 548.3395319824.

The spelling of 164872670 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, six hundred seventy".