164670026 has 4 divisors (see below), whose sum is σ = 247005042. Its totient is φ = 82335012.

The previous prime is 164670019. The next prime is 164670029. The reversal of 164670026 is 620076461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 163814401 + 855625 = 12799^2 + 925^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164669974 and 164670001.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41167505 + ... + 41167508.

Almost surely, 2^164670026 is an apocalyptic number.

164670026 is a deficient number, since it is larger than the sum of its proper divisors (82335016).

164670026 is an equidigital number, since it uses as much as digits as its factorization.

164670026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82335015.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 164670026 is about 12832.3819301017. The cubic root of 164670026 is about 548.1147862803.

The spelling of 164670026 in words is "one hundred sixty-four million, six hundred seventy thousand, twenty-six".