664542335 has 8 divisors (see below), whose sum is σ = 832122720. Its totient is φ = 508519264.

The previous prime is 664542323. The next prime is 664542343. The reversal of 664542335 is 533245466.

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 664542335 - 2¹² = 664538239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2889200 + ... + 2889429.

It is an arithmetic number, because the mean of its divisors is an integer number (104015340).

Almost surely, 2^664542335 is an apocalyptic number.

664542335 is a deficient number, since it is larger than the sum of its proper divisors (167580385).

664542335 is a wasteful number, since it uses less digits than its factorization.

664542335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778657.

The product of its digits is 259200, while the sum is 38.

The square root of 664542335 is about 25778.7186454253. The cubic root of 664542335 is about 872.6515900953.

The spelling of 664542335 in words is "six hundred sixty-four million, five hundred forty-two thousand, three hundred thirty-five".