664610336662 has 16 divisors (see below), whose sum is σ = 1101451403232. Its totient is φ = 299159639680.

The previous prime is 664610336659. The next prime is 664610336671. The reversal of 664610336662 is 266633016466.

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, 424941889 + ... + 424943452.

It is an arithmetic number, because the mean of its divisors is an integer number (68840712702).

Almost surely, 2^664610336662 is an apocalyptic number.

664610336662 is a deficient number, since it is larger than the sum of its proper divisors (436841066570).

664610336662 is a wasteful number, since it uses less digits than its factorization.

664610336662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849885383.

The product of its (nonzero) digits is 3359232, while the sum is 49.

The spelling of 664610336662 in words is "six hundred sixty-four billion, six hundred ten million, three hundred thirty-six thousand, six hundred sixty-two".