164355663 has 8 divisors (see below), whose sum is σ = 223803648. Its totient is φ = 107239064.

The previous prime is 164355619. The next prime is 164355679. The reversal of 164355663 is 366553461.

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 164355663 - 2¹² = 164351567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164355563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582681 + ... + 582962.

It is an arithmetic number, because the mean of its divisors is an integer number (27975456).

Almost surely, 2^164355663 is an apocalyptic number.

164355663 is a deficient number, since it is larger than the sum of its proper divisors (59447985).

164355663 is a wasteful number, since it uses less digits than its factorization.

164355663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165693.

The product of its digits is 194400, while the sum is 39.

The square root of 164355663 is about 12820.1272614588. The cubic root of 164355663 is about 547.7657715939.

The spelling of 164355663 in words is "one hundred sixty-four million, three hundred fifty-five thousand, six hundred sixty-three".