6667151720 has 64 divisors (see below), whose sum is σ = 15405318720. Its totient is φ = 2595446784.

The previous prime is 6667151719. The next prime is 6667151723. The reversal of 6667151720 is 271517666.

It is not an unprimeable number, because it can be changed into a prime (6667151723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479912 + ... + 493608.

It is an arithmetic number, because the mean of its divisors is an integer number (240708105).

Almost surely, 2^6667151720 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 6667151720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7702659360).

6667151720 is an abundant number, since it is smaller than the sum of its proper divisors (8738167000).

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

6667151720 is a wasteful number, since it uses less digits than its factorization.

6667151720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034 (or 14030 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 6667151720 is about 81652.6283716575. The cubic root of 6667151720 is about 1882.1177019213.

The spelling of 6667151720 in words is "six billion, six hundred sixty-seven million, one hundred fifty-one thousand, seven hundred twenty".