6670291680 has 672 divisors, whose sum is σ = 26236931616. Its totient is φ = 1591529472.

The previous prime is 6670291679. The next prime is 6670291687. The reversal of 6670291680 is 861920766.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670291687) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 80364919 + ... + 80365001.

It is an arithmetic number, because the mean of its divisors is an integer number (39043053).

Almost surely, 2^6670291680 is an apocalyptic number.

6670291680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6670291680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13118465808).

6670291680 is an abundant number, since it is smaller than the sum of its proper divisors (19566639936).

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

6670291680 is a wasteful number, since it uses less digits than its factorization.

6670291680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 6670291680 is about 81671.8536584055. The cubic root of 6670291680 is about 1882.4131227664.

The spelling of 6670291680 in words is "six billion, six hundred seventy million, two hundred ninety-one thousand, six hundred eighty".