664487514606 has 8 divisors (see below), whose sum is σ = 1328975029224. Its totient is φ = 221495838200.

The previous prime is 664487514571. The next prime is 664487514611. The reversal of 664487514606 is 606415784466.

It is a happy number.

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

664487514606 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55373959545 + ... + 55373959556.

It is an arithmetic number, because the mean of its divisors is an integer number (166121878653).

Almost surely, 2^664487514606 is an apocalyptic number.

664487514606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664487514606 is a wasteful number, since it uses less digits than its factorization.

664487514606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110747919106.

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 664487514606 in words is "six hundred sixty-four billion, four hundred eighty-seven million, five hundred fourteen thousand, six hundred six".