664102235 has 4 divisors (see below), whose sum is σ = 796922688. Its totient is φ = 531281784.

The previous prime is 664102223. The next prime is 664102249. The reversal of 664102235 is 532201466.

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 664102235 - 2²² = 659907931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 664102198 and 664102207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66410219 + ... + 66410228.

It is an arithmetic number, because the mean of its divisors is an integer number (199230672).

Almost surely, 2^664102235 is an apocalyptic number.

664102235 is a deficient number, since it is larger than the sum of its proper divisors (132820453).

664102235 is a wasteful number, since it uses less digits than its factorization.

664102235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132820452.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 664102235 is about 25770.1811208226. The cubic root of 664102235 is about 872.4589067216.

The spelling of 664102235 in words is "six hundred sixty-four million, one hundred two thousand, two hundred thirty-five".