164650553 has 4 divisors (see below), whose sum is σ = 165180288. Its totient is φ = 164120820.

The previous prime is 164650469. The next prime is 164650621. The reversal of 164650553 is 355056461.

164650553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164650553 - 2²² = 160456249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164656553) 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, 264401 + ... + 265022.

It is an arithmetic number, because the mean of its divisors is an integer number (41295072).

Almost surely, 2^164650553 is an apocalyptic number.

It is an amenable number.

164650553 is a deficient number, since it is larger than the sum of its proper divisors (529735).

164650553 is an equidigital number, since it uses as much as digits as its factorization.

164650553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529734.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 164650553 is about 12831.6231631076. The cubic root of 164650553 is about 548.0931797170.

The spelling of 164650553 in words is "one hundred sixty-four million, six hundred fifty thousand, five hundred fifty-three".