164670020 has 12 divisors (see below), whose sum is σ = 345807084. Its totient is φ = 65868000.

The previous prime is 164670019. The next prime is 164670029. The reversal of 164670020 is 20076461.

It can be written as a sum of positive squares in 2 ways, for example, as 73582084 + 91087936 = 8578^2 + 9544^2 .

It is not an unprimeable number, because it can be changed into a prime (164670029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4116731 + ... + 4116770.

It is an arithmetic number, because the mean of its divisors is an integer number (28817257).

Almost surely, 2^164670020 is an apocalyptic number.

164670020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164670020 is an abundant number, since it is smaller than the sum of its proper divisors (181137064).

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

164670020 is a wasteful number, since it uses less digits than its factorization.

164670020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233510 (or 8233508 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 164670020 is about 12832.3816963181. The cubic root of 164670020 is about 548.1147796231.

The spelling of 164670020 in words is "one hundred sixty-four million, six hundred seventy thousand, twenty".