6670109664 has 144 divisors (see below), whose sum is σ = 20957463072. Its totient is φ = 2001567744.

The previous prime is 6670109659. The next prime is 6670109689. The reversal of 6670109664 is 4669010766.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82992 + ... + 142224.

It is an arithmetic number, because the mean of its divisors is an integer number (145537938).

Almost surely, 2^6670109664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6670109664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10478731536).

6670109664 is an abundant number, since it is smaller than the sum of its proper divisors (14287353408).

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

6670109664 is a wasteful number, since it uses less digits than its factorization.

6670109664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59289 (or 59278 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6670109664 is about 81670.7393379049. The cubic root of 6670109664 is about 1882.3960004556.

The spelling of 6670109664 in words is "six billion, six hundred seventy million, one hundred nine thousand, six hundred sixty-four".