164263655 has 8 divisors (see below), whose sum is σ = 201700752. Its totient is φ = 128354688.

The previous prime is 164263643. The next prime is 164263661. The reversal of 164263655 is 556362461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164263655 - 2¹⁸ = 164001511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381794 + ... + 382223.

It is an arithmetic number, because the mean of its divisors is an integer number (25212594).

Almost surely, 2^164263655 is an apocalyptic number.

164263655 is a deficient number, since it is larger than the sum of its proper divisors (37437097).

164263655 is an equidigital number, since it uses as much as digits as its factorization.

164263655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764065.

The product of its digits is 129600, while the sum is 38.

The square root of 164263655 is about 12816.5383391928. The cubic root of 164263655 is about 547.6635375329.

The spelling of 164263655 in words is "one hundred sixty-four million, two hundred sixty-three thousand, six hundred fifty-five".