645365335 has 8 divisors (see below), whose sum is σ = 774651456. Its totient is φ = 516150240.

The previous prime is 645365323. The next prime is 645365351. The reversal of 645365335 is 533563546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 645365335 - 2⁷ = 645365207 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 7 ways as a sum of consecutive naturals, for example, 4857 + ... + 36253.

It is an arithmetic number, because the mean of its divisors is an integer number (96831432).

Almost surely, 2^645365335 is an apocalyptic number.

645365335 is a deficient number, since it is larger than the sum of its proper divisors (129286121).

645365335 is a wasteful number, since it uses less digits than its factorization.

645365335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35513.

The product of its digits is 486000, while the sum is 40.

The square root of 645365335 is about 25404.0417059963. The cubic root of 645365335 is about 864.1753576219.

The spelling of 645365335 in words is "six hundred forty-five million, three hundred sixty-five thousand, three hundred thirty-five".