164608655 has 4 divisors (see below), whose sum is σ = 197530392. Its totient is φ = 131686920.

The previous prime is 164608607. The next prime is 164608657. The reversal of 164608655 is 556806461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556806461 = 131 ⋅4250431.

It is not a de Polignac number, because 164608655 - 2¹⁰ = 164607631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164608657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16460861 + ... + 16460870.

It is an arithmetic number, because the mean of its divisors is an integer number (49382598).

Almost surely, 2^164608655 is an apocalyptic number.

164608655 is a deficient number, since it is larger than the sum of its proper divisors (32921737).

164608655 is an equidigital number, since it uses as much as digits as its factorization.

164608655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32921736.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 164608655 is about 12829.9904520619. The cubic root of 164608655 is about 548.0466853774.

The spelling of 164608655 in words is "one hundred sixty-four million, six hundred eight thousand, six hundred fifty-five".