6670621116 has 36 divisors (see below), whose sum is σ = 17273116224. Its totient is φ = 2169307200.

The previous prime is 6670621079. The next prime is 6670621117. The reversal of 6670621116 is 6111260766.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670621117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2258220 + ... + 2261171.

It is an arithmetic number, because the mean of its divisors is an integer number (479808784).

Almost surely, 2^6670621116 is an apocalyptic number.

It is an amenable number.

6670621116 is an abundant number, since it is smaller than the sum of its proper divisors (10602495108).

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

6670621116 is a wasteful number, since it uses less digits than its factorization.

6670621116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519442 (or 4519437 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 6670621116 is about 81673.8704605090. The cubic root of 6670621116 is about 1882.4441121379. Note that the first 3 decimals are identical.

The spelling of 6670621116 in words is "six billion, six hundred seventy million, six hundred twenty-one thousand, one hundred sixteen".