6651142880 has 48 divisors (see below), whose sum is σ = 15718618944. Its totient is φ = 2659560960.

The previous prime is 6651142879. The next prime is 6651142889. The reversal of 6651142880 is 882411566.

It is a super-2 number, since 2×6651142880² = 88475403220349388800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651142889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678494 + ... + 688226.

It is an arithmetic number, because the mean of its divisors is an integer number (327471228).

Almost surely, 2^6651142880 is an apocalyptic number.

It is an amenable number.

6651142880 is an abundant number, since it is smaller than the sum of its proper divisors (9067476064).

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

6651142880 is a wasteful number, since it uses less digits than its factorization.

6651142880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14019 (or 14011 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 6651142880 is about 81554.5392973316. The cubic root of 6651142880 is about 1880.6100781454.

The spelling of 6651142880 in words is "six billion, six hundred fifty-one million, one hundred forty-two thousand, eight hundred eighty".