164550663 has 16 divisors (see below), whose sum is σ = 244323840. Its totient is φ = 109455192.

The previous prime is 164550653. The next prime is 164550677. The reversal of 164550663 is 366055461.

164550663 is a `hidden beast` number, since 1 + 645 + 5 + 0 + 6 + 6 + 3 = 666.

164550663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164550663 - 2⁹ = 164550151 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164550613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5920 + ... + 19082.

It is an arithmetic number, because the mean of its divisors is an integer number (15270240).

Almost surely, 2^164550663 is an apocalyptic number.

164550663 is a deficient number, since it is larger than the sum of its proper divisors (79773177).

164550663 is a wasteful number, since it uses less digits than its factorization.

164550663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13635 (or 13629 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 164550663 is about 12827.7302357042. The cubic root of 164550663 is about 547.9823184573.

The spelling of 164550663 in words is "one hundred sixty-four million, five hundred fifty thousand, six hundred sixty-three".