164123655 has 16 divisors (see below), whose sum is σ = 263935584. Its totient is φ = 87086720.

The previous prime is 164123639. The next prime is 164123681. The reversal of 164123655 is 556321461.

It is not a de Polignac number, because 164123655 - 2⁴ = 164123639 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24816 + ... + 30725.

It is an arithmetic number, because the mean of its divisors is an integer number (16495974).

Almost surely, 2^164123655 is an apocalyptic number.

164123655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164123655 is a deficient number, since it is larger than the sum of its proper divisors (99811929).

164123655 is a wasteful number, since it uses less digits than its factorization.

164123655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55746.

The product of its digits is 21600, while the sum is 33.

The square root of 164123655 is about 12811.0754817853. The cubic root of 164123655 is about 547.5079042248.

The spelling of 164123655 in words is "one hundred sixty-four million, one hundred twenty-three thousand, six hundred fifty-five".