664410535 has 16 divisors (see below), whose sum is σ = 819981792. Its totient is φ = 516505600.

The previous prime is 664410493. The next prime is 664410547. The reversal of 664410535 is 535014466.

It is not a de Polignac number, because 664410535 - 2¹⁹ = 663886247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664410535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46380 + ... + 58990.

It is an arithmetic number, because the mean of its divisors is an integer number (51248862).

Almost surely, 2^664410535 is an apocalyptic number.

664410535 is a deficient number, since it is larger than the sum of its proper divisors (155571257).

664410535 is a wasteful number, since it uses less digits than its factorization.

664410535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 664410535 is about 25776.1621464484. The cubic root of 664410535 is about 872.5938947070.

The spelling of 664410535 in words is "six hundred sixty-four million, four hundred ten thousand, five hundred thirty-five".