664054535 has 4 divisors (see below), whose sum is σ = 796865448. Its totient is φ = 531243624.

The previous prime is 664054483. The next prime is 664054553. The reversal of 664054535 is 535450466.

It is a happy number.

664054535 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.

It is a cyclic number.

It is not a de Polignac number, because 664054535 - 2⁶ = 664054471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66405449 + ... + 66405458.

It is an arithmetic number, because the mean of its divisors is an integer number (199216362).

Almost surely, 2^664054535 is an apocalyptic number.

664054535 is a deficient number, since it is larger than the sum of its proper divisors (132810913).

664054535 is a wasteful number, since it uses less digits than its factorization.

664054535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132810912.

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 664054535 is about 25769.2556159467. The cubic root of 664054535 is about 872.4380177259.

The spelling of 664054535 in words is "six hundred sixty-four million, fifty-four thousand, five hundred thirty-five".