164656306 has 4 divisors (see below), whose sum is σ = 246984462. Its totient is φ = 82328152.

The previous prime is 164656301. The next prime is 164656307. The reversal of 164656306 is 603656461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603656461 = 1409 ⋅428429.

It can be written as a sum of positive squares in only one way, i.e., 134351281 + 30305025 = 11591^2 + 5505^2 .

It is a super-2 number, since 2×164656306² = 54223398211131272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164656301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41164075 + ... + 41164078.

Almost surely, 2^164656306 is an apocalyptic number.

164656306 is a deficient number, since it is larger than the sum of its proper divisors (82328156).

164656306 is an equidigital number, since it uses as much as digits as its factorization.

164656306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82328155.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 164656306 is about 12831.8473338799. The cubic root of 164656306 is about 548.0995632229.

The spelling of 164656306 in words is "one hundred sixty-four million, six hundred fifty-six thousand, three hundred six".